11.I gave John a present but he gave me nothing ______.
12.She ______to say that she was not interested in what I was talking about.
13.She ______be ill because I saw her playing basketball just now.
14.It is already five o’clock now.Don’t you think it’s about time______.
A.we are going home
B.we go home
C.we went home
D.we can go home
15.All things ______,the planned trip will have to be cancelled.
16.It ______have rained last night,for the ground is wet.
17.If John had told me in advance,I ______him at the airport.
C.am going to meet
D.would have met
18.This year we’ll produce ______steel as we did last year.
A.three times as much
B.as three times much
C.as much three times
D.three times much as
19.I’d rather you ______make any comment on the issue for the time being.
20.The government has promised to do ______lies in its power to ease the hardships of the homeless.