The teacher came into the classroom, ____ by his students.
A. following B. to be following
C. followed D. having followed
If he ____hard, he would have passed the exam.
A. were to work B. had worked
C. should work D. was to work
Last summer we saw a very good film, ____ was about the Anti-Japanese war.
A. which B. when C. that D. where
Anna was in Inner Mongolia for two years, ____ as a volunteer teacher.
A. having worked B. working C. worked D. to work
— Do you know ______ the meeting room earlier?
— She had a headache.
A. why Ann left B. why did Ann leave
C. why Ann will leave D. why will Ann leave
The teacher told the children ______ quiet in the museum.
A. keep B. kept C. keeping D. to keep
