Mr Wang isn’t here , I think he __________ Shanghai .
A. went B. went to
C. has gone to D. has been to
--- Lily is ill in hospital .---Really ? I _____ know she was ill .
A.don’t know B.know C. knew D.didn’t know
The task is so hard for
e . I don’t know _______________.
A. what I can do B. how to do C. what to do D. both A and C
Good books help us ___________ a whole new world to me .
A. turn up B. look up C. get up D.open up
There is no air _______ water on the moon .
A.and B. but C. or D.with
They don’t know what ___________ the problem .
A. to do B. do C. to do with D. do with
