John’s father went to Nanjing ________ten days ago.
A. on duty B. in business
C. on business D. on show
I __________ Beijing three times, I know there very well.
A. went B. have been to
C. have gone to D. have been in
To my surprise, the tiny person is ___________my little finger.
A. the same big to B. the same size of
C. the same size as D. the same big as
Linda doesn’t know __________about her problems.
A. who to talk B. where to talk to
C. who to talk to D. how to talk to
The train is running _____the speed of 200 kilometers per hour.
A. with B. at C. in D. For
I think you should spend as much time as you can_____ Maths and English.
A. learning B. to learn
C. have learnt D. Learned
