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1/ It is essential that pollution ____ and eventually ____.
a. must be controlled - must be eliminated
b. be controlled - be eliminated
c. control - eliminate
d. A & B
2/ Some of the stars are so far away that it is impossible ____ immediately was approved.
a. that we measure it
b. to us to measure
c. for us to measure them
d. that measures them
3/ The director recommended that all the staff ____ anyone outside the company during the training session.
a. do not contact
b. cannot contact
c. must not contact
d. not contact
a. must be controlled - must be eliminated
b. be controlled - be eliminated
c. control - eliminate
d. A & B
2/ Some of the stars are so far away that it is impossible ____ immediately was approved.
a. that we measure it
b. to us to measure
c. for us to measure them
d. that measures them
3/ The director recommended that all the staff ____ anyone outside the company during the training session.
a. do not contact
b. cannot contact
c. must not contact
d. not contact