After decades of effort, the city is still trying to _____ how to stop smoking in public places.
| A．try out | B．let out | C．figure out | D．run out |
cycling is a fantastic way to burn a few calories and save some money, there still exist risks．
| A．Since | B．While | C．As | D．When |
Apple now gets about 11% of its income from China, ____ with 1.1 in 2009.
| A．to compare | B．comparing |
| C．being compared | D．compared |
—— Maybe our boss is willing to help us out
—— ________. He cares nobody but himself
| A．Don't mention it | B．You wish |
| C．Good idea | D．No wonder |
----Wow, isn’t this handsome device the most popular iphone5? Can I have a look at it?
----___________.
| A．No, you can’t | B．Sorry, it’s expensive |
| C．Sure, it looks good | D．Yes, go ahead |
While our city tries impatiently to change its appearance by tearing down old buildings, more and more citizens are suggesting ways to ___________ the historically important architecture
| A．decorate | B．develop | C．preserve | D．reserve |