31. How to solve the problem __________ in the meeting right now
| A．was being discussed | B．are being discussed |
| C．is being discussed | D．is going to discuss |
The pretty girl is always busy helping her mother with the housework _________ I go to visit her family.
| A．every time | B．every time when | C．at every time | D．however time |
______ more effectively in the future, many people equip themselves with further education.
| A．Compete | B．Competing | C．To compete | D．Competed |
We often go to ________ school library because we can have such easy access ________ the Internet there.
| A．the; on | B．the; to | C．不填; with | D．不填; of |
-------Sorry I made a mistake again.
------- _________. Practice more and you will succeed.
| A．Never mind | B．Certainly not | C．Not at all | D．Don’t mention it. |
----- It was a red light, William. You ________ the car.
------- Sorry, I didn’t see it.
| A．must stop | B．should stop | C．must have stopped | D．should have stopped |