

M.n giúp e vs ạ, kèm giải thích chi tiết 
Exercise 5. Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
Exercise 6. Mark the letter A, B, c, or D to indicate the correct answer to each of the following questions.
67. The president of the company officially apologised to the local residents having dumped a large amount of raw sewage in the area.
A. About B. with C. at D. for
68. The factory was accused __________ having caused higher level of pollution
to the environment.
A. About B. on C. of D. for
69. We all admire him _________ having changed both his attitude and behaviours towards the environmental issues.
A. About B. for C. with D. at
70. Human activities are also blamed ___________ having contributed to global
warming.
A. For B. on C. at D. with
71. We congratulated him _________ having invented an energy-saving device.
A. For B. at C. about D. on
72. He was criticised_________ not having put the elephant poachers in jail.
A. At B. about C. for D. on
73. His company was punished ____________ not having dumped the rubbish
properly.
A. By B. for C. about D. because of
74. The city mayor praised all voluntary students ____________ having cleaned the
playgrounds for the children.
A. For B. because of C. at D. due to
75. He thanked us__________ having contributed to cleaning the surrounding
environment.
A. On B. to C. with D. for
76. He was suspected ___________ having received presents from the local
companies and ignored their violations of the environmental law.
A. About B. on C. of D. for
77. Even when arrested, he denied __________ cut down that tree.
A. Has B. having C. have D. have had
78. Those farmers admitted ___________having used more chemical fertilisers than
needed.
A. On B. about C. for D. to
79. He forgot ________ promised to cut down on the carbon dioxide emissions
into the atmosphere.
A. To promise B. have C. having D. had
80. I remembered hạving __________ off the lights before leaving home.
A. Switched B. switch C. switching D. switches
81. He regretted not__________ registered for military Service last spring.
A. Have B. having C. having had D. having done
82. The local residents suspected the autborities __________ having kept the
pollution level secret from the local people.
A. About B. on C. of D. for
83. He denied having polluted the environment,________ no one believed him.
A. However B. despite C. but D. in spite of
84. Thank you for having________ the information about global warming.
A. Shared B. sharing C. share D. shares
85. He regretted __________ killed and eaten several rare species.
A. To have B. having C. have D. has
86. His company was ílned ___________ dumped tons of toxic waste near the
residential area.
A. To have B. because of having
C. Forhaving D. of having
87. These students were rewarded ____________ actively taken part in voluntary
activities.
A. With B. bef0re C. on having D. for having
88. She was praised___________ donated a lot of money to the wildlife protection
organisation.
A. For having B. to have
C. Because of having D. due to having
89. I remember _________ advised you to stop hunting endangered animals.
A. To have B. having C. have D. had
90. The local authorities were blamed ______ignored the pollution issues in the area
A. About having B. on having C. for having D. before having
Exercise 5. Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.



Exercise 6. Mark the letter A, B, c, or D to indicate the correct answer to each of the following questions.
67. The president of the company officially apologised to the local residents having dumped a large amount of raw sewage in the area.
A. About B. with C. at D. for
68. The factory was accused __________ having caused higher level of pollution
to the environment.
A. About B. on C. of D. for
69. We all admire him _________ having changed both his attitude and behaviours towards the environmental issues.
A. About B. for C. with D. at
70. Human activities are also blamed ___________ having contributed to global
warming.
A. For B. on C. at D. with
71. We congratulated him _________ having invented an energy-saving device.
A. For B. at C. about D. on
72. He was criticised_________ not having put the elephant poachers in jail.
A. At B. about C. for D. on
73. His company was punished ____________ not having dumped the rubbish
properly.
A. By B. for C. about D. because of
74. The city mayor praised all voluntary students ____________ having cleaned the
playgrounds for the children.
A. For B. because of C. at D. due to
75. He thanked us__________ having contributed to cleaning the surrounding
environment.
A. On B. to C. with D. for
76. He was suspected ___________ having received presents from the local
companies and ignored their violations of the environmental law.
A. About B. on C. of D. for
77. Even when arrested, he denied __________ cut down that tree.
A. Has B. having C. have D. have had
78. Those farmers admitted ___________having used more chemical fertilisers than
needed.
A. On B. about C. for D. to
79. He forgot ________ promised to cut down on the carbon dioxide emissions
into the atmosphere.
A. To promise B. have C. having D. had
80. I remembered hạving __________ off the lights before leaving home.
A. Switched B. switch C. switching D. switches
81. He regretted not__________ registered for military Service last spring.
A. Have B. having C. having had D. having done
82. The local residents suspected the autborities __________ having kept the
pollution level secret from the local people.
A. About B. on C. of D. for
83. He denied having polluted the environment,________ no one believed him.
A. However B. despite C. but D. in spite of
84. Thank you for having________ the information about global warming.
A. Shared B. sharing C. share D. shares
85. He regretted __________ killed and eaten several rare species.
A. To have B. having C. have D. has
86. His company was ílned ___________ dumped tons of toxic waste near the
residential area.
A. To have B. because of having
C. Forhaving D. of having
87. These students were rewarded ____________ actively taken part in voluntary
activities.
A. With B. bef0re C. on having D. for having
88. She was praised___________ donated a lot of money to the wildlife protection
organisation.
A. For having B. to have
C. Because of having D. due to having
89. I remember _________ advised you to stop hunting endangered animals.
A. To have B. having C. have D. had
90. The local authorities were blamed ______ignored the pollution issues in the area
A. About having B. on having C. for having D. before having