A new ________ bus service to Yangzhou-taizhou Airport started to operate two months ago.
A. normal B. usual
C. regular D. common
Doctor Wang, who ____ western medicine for six years in New York, is now working in a famous hospital in Shanghai.
A. had studied B. studied
C. has studied D. is studying
We have no idea what ____ the sports exercises will have _____ human body in the future.
A. cause; on B. effect; upon
C. affect; in D. affect; upon
In the time of economic crisis, every coin _________ a lot.
A. values B. important
C. worth D. counts
--- Miss Yuan, you promised!
--- Well, ____________. But it was you broke your word first.
A. so was I B. so did I
C. so I was D. so I did
Joan spent as much time as she ________ me with my maths while I was in China.
A. could to help B. to help
C. could helping D. helped
