-----I bought this dictionary two weeks ago. ----You mean you __________ it for half a month.
Tom and Mike are in ___________ school, but they are in ________classes.
---- ________does Nancy usually go to a buddy club?---- Once a week.
Those boys _________ English at the English corner now.
----What do you think of the weather in Nanjing?----It’s warmer than________ in Beijing.
China is one of________ in the world.