—Li Lin is very bright and studies hard as well.
—It’s no ______ he always gets the first place in any examination.
| A．question | B．doubt |
| C．problem | D．wonder |
The development of industry has been ________ gradual process throughout ________ human existence, from stone tools to modern technology.
| A．/; the |
| B．the; a |
| C．a; / |
| D．a; a |
—What shall we do tonight then?
—_______ -whatever you want.
| A．Help yourself |
| B．It’s a deal |
| C．No problem |
| D．It’s up to you |
It suddenly occurred to him ________ he had left his keys in the office.
| A．whether |
| B．where |
| C．which |
| D．that |
It was a real race ________ time to get the project done. Luckily, we made it.
| A．over |
| B．by |
| C．for |
| D．against |
—How far can you run without stopping?
—_________. I’ve never tried.
| A．Don’t mention it |
| B．That’s all right |
| C．I have no idea |
| D．Go ahead |