If you've finished we can have a coffee, if not, you'd better keep __________.
| A．worked | B．to work |
| C．working | D．being worked |
--Reading is the best way to pass time on the train.
--, I never go traveling without a book.
| A．You are joking | B．That's true |
| C．I don't think so | D．It sounds like fun |
When it ________ air pollution, Beijing faces the three “C”s, cars, coals and construction, which lead to Beijing’s thick air pollution.
| A．refers to | B．comes to |
| C．happens | D．speaks to |
It remains ______ whether Jim will be fit enough to play in the finals.
| A．seen | B．to be seen |
| C．seeing | D．to see |
English is ________ hard for me and Physics is ________ harder.
| A．a little; a lot | B．a lot; a little |
| C．a bit; more | D．rather; quite |
Hi, Doctor Wang, my chest _______ when I make a deep breath.
| A．harms | B．wounds |
| C．hurts | D．Injures |