The experts suggested the problem worth paying attention _____ at the meeting.
| A．to be discussed | B．to been discussed |
| C．being discussed | D．should be discussed |
-What do you do yesterday afternoon?
-I went to the bookstore，___ some books and visited my uncle.
| A．to buy | B．bought |
| C．Buy | D．buying |
Exercise is ______ as any other to lose unwanted weight.
| A．so useful a way | B．as a useful way |
| C．as useful a way | D．such useful way |
-Do you think we can get there on time?
-Yes，_______ the truck doesn’t break down.
| A．even if | B．unless |
| C．until | D．so long as |
The new machine，if _________ properly，will work at least ten years.
| A．use | B．using |
| C．being used | D．used |
-You must be excited about going to Japan for schooling.
-_________，but I’m afraid I can’t do well because my Japanese is poor.
| A．Never mind | B．Well，I ought to |
| C．I don’t know yet | D．Certainly not |