_____ all the inventions have in common is ______ they have succeeded.
| A．What; what | B．That; what | C．What; that | D．That; that |
--- Could you turn the TV down a little bit ?
--- ______ . Is it disturbing you?
A 
.Take it easy B . I’m sorry C. Not a bit D. It depends.
_____a fine day , Shen Zhou VI will be launched on time according to its planned time.
| A．Being | B．It being | C． To be | D． It is |
---- Look at these black clouds . It _______ soon
---- Sure. If only we ________ out.
| A．is raining, didn’t e | B．is to rain, won’t start.. |
| C．will rain, haven’t started | D．is going to rain, hadn’t e |
John is not good at music, but when ______ es to English, he is the best in the class.
| A．he | B．this | C．it | D．that |
Alan is a careful driver , but he drives ____ of my friends.
A. more carefully B. the most carefully
C. less carefully D
. the least carefully.