–Long time no see! Where have you been?
--I went to Ningxia and ______ there for one year, teaching as a volunteer.
A. stayed B. stay C. had stayed D. am staying
I’ve ordered some pizza, so we _____ worry about cooking when we get home tired.
A. can’t B. may not C. needn’t D. dare not
You will never be successful _____ you are fully devoted to you work.
A. because B. unless C. if D. when
Whenever you ______ a present, you’d better think about it from the receiver’s preference.
A. bought B. buy C. will buy D. have bought
–What do you think of your new ipad? --Good. I can’t find a ______ one.
A. worst B. best C. worse D. better
The purpose of the article is to draw public attention ______ the traffic problem.
A. to B. on C. in D. for
