I.单项填空:（每空1分, 共计20分）
( )1.Last week we went to travel with some friends of_____.
A. us B. our C. ours D. ourselves
( )2. --Where is Tom?
--He hasn't come to school today. I think he____ be ill.
A. has to B. should C. may D. need
( )3. It _____ us two hours to work out the problem.
A. cost B. spent C. paid D. took
( )4. The little girl _____ her mother in many ways, ______ she?
A. look like, doesn’t B. took after, didn’t
C. takes like, doesn’t D. look after, doesn’t
