13．Many medical scientists are racing__________time to find a cure for H1N1 as s

题型：不详难度：来源：

13．Many medical scientists are racing__________time to find a cure for H1N1 as soon as possible.

A．on

B．against

C．for

D．In

答案

解析

略

举一反三

17．--- Mary, I have got a new cell phone number!
--- Oh, hold on. I’ll put it down just___________ .

A．in deed

B．in case

C．in time

D．in use

题型：不详难度：| 查看答案

---Would you like some more beef?
---No, thanks. I’m ______ a diet.

A．for

B．to

C．on

D．in

题型：不详难度：| 查看答案

29. ______ many people, he prefers classical music to pop.

A．In common

B．In common with

C．Out of common with

D．Out of common

题型：不详难度：| 查看答案

22. Careful surveys have showed that audience _______ teachers and studentsare more likely to take seats _______ directed.

A．1ike; that

B．as; that

C．1ike; as

D．as; like

题型：不详难度：| 查看答案

28. Vitamin D helps our bodies make a special chemical, and this special chemical, _______, affects our brains, making us feel happy.

A．in turn

B．in particular

C．in return

D．in short

题型：不详难度：| 查看答案