If I had known that, I ___ so.
A. wouldn’t do
B. wouldn’t have done
C. won’t do
D. have not done
The doctor suggested that she ___.
A. will not smoke
B. not smoke
C. would not smoke
D. did not smoke
He suggested that the work ___ at once.
A. would started
B. would be started
C. should started
D. should be started
It is strange that such a thing ___ in your school.
A. will happen
B. happens
C. should happen
D. happened