1 . We couldn’t be ________ ________ ________ (感激不尽) what he did. (根据汉语提示完成句子)

2 . I have a ________ ________ (偏好)sweet food. (根据汉语提示完成句子)

3 . Our new offices are still under c________, and they will be put into use next year. （根据首字母单词拼写）

4 . Under no c________ will China be the first one to use nuclear weapons. (根据首字母单词拼写)

5 . Because of illegal logging, forest fires and climate change, the world’s forests are disappearing ______ the rate of 146,000 square kilometers a year.

6 . As long as you’ve paid ____ advance we won’t charge you ____ delivery.

A．by: for

B．in; with

C．in; for

D．by; with

7 . The project alongside with the experiment we had once committed so much time ______ perfectly.

A．to work out	B．to working out
C．to worked out	D．has worked out

8 . Is there a certain cure ___ lung cancer yet?

A．of

B．for

C．at

D．about

9 . To start with the aim of doing harm to others is only to ________ ruining oneself.

A．at the end	B．in the end
C．make ends meet	D．end up

10 . Mr Han, my neighbour, is always helping those who are in trouble without expecting anything _________.

A．in turn	B．in return
C．in detail	D．in addition