Pollution is a serious ___________ in China . PM2.5 has been increasing in recent years.
A. wrong B. question C. problem D. matter
Ann is _____ honest girl and she never tells lies.
A. an B. a C. the D./
—Mark, please don’t play basketball on the road. It’s very dangerous.
—________ . I am going home at once.
A. Have a great time B. OK, with pleasure
C. I’d like to D. Sorry, I won’t do that
—David, could you tell me ______? —Every four years.
A. when the 2014 World Cup finished
B. how often the World Cup takes place
C. how many teams take part in the World Cup
D. who may score the most goals in the World Cup
____________ Tom __________ Mary speaks good Chinese, so they can communicate with these Chinese students very well.
A. Neither； nor B. Not only； but also
C. Both； and D. Either； or
If you have any problems, you can ask Dr. Know-all _________ help.
A. at B. on C. for D. with
