1.He insisted on a full apology -->nothing but a full apology was acceptable to him 2.Although the girl is young, she is quiet experienced. -->in spite of the fact that the girl is young,she is quite experienced 3. Who often makes people in your class laugh ? -->By who peple in your class are made to laugh? 4.''Shall I clean the windows for you ,Mai?'' said Nam -->Nam offered cleaning the windows for Mai 5. No one has seen Hoa since her birthday --> the last time Hoa was seen was on her birthday.