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
The house ______ I live in is very small.
A. that B. whom C. when D. what
He ______ a chance to try it again just now.
A. gave B. will give C. is given D. was given
Smoking ______ in the kitchen in my house.
A. doesn’t allow B. didn’t allow
C. isn’t allowed D. won’t allow
