—You can’t smoke here. —Sorry, I _________the sign.
A.haven’t seen B.didn’t see C.don’t see D.won’t see
The maths problem was not difficult, but he didn’t know ______.
A.what to do it B.how to do it
C.how to do D.to do what
The water was all over the floor and I nearly ________.
A.moved down B.moved up C.fell from D.fell over
—Where is your father?
—He _______ Shanghai. He has ______ there for a week.
A.has gone to; gone B.has been in; gone
C.has gone to; been D.has been to; been
The film __________ for 5 minutes, and we missed the beginning unluckily.
A.is on B.has been on C.begins D.has begun
Three ________ people are gathering on the square．
A.thousand B.thousands C.thousand of D.thousands of
