Your idea seems to be good but it isn't _____.

 A. talking about

B. referring to

C. listening to

D. carrying out

A. and B. so C. thus D. while

A. and B. but C. or D. so

A.、Cell phone use is dangerous。

B、Cell phone use causes cancer。

C、The human brain is an electromagnetic field。

D、There are about 5 billion cell phone users in the world right now。

A. Had you come B. Did you come 　C. Have you come D. Should you come

A. deeper B. slower C. further D. higher

A. suppose B. assume C. assure D. grant

A. in exchange B. instead C. in return D. in particular