.Mary spent        summer at home last year.

--- __________ do you chat by QQ with your friend in Shanghai every week?--- Two hours. I have much homework to do every day.

—Look! How _________ the market is!—Yes. There are always lots of people buying things there. 

词义替换Pandas are becoming less and less in recent(近来) years. 

The mountain I visited last Sunday isn’t very ________. Few ________ go sightseeing there.