–Do you think Professor Smith_________be in the lab?
--I’m not sure.
| A．must | B．shall | C．need | D．can |
It will be many years _____ he turns ______engineer.
| A．that; an | B．when; a | C．until; \ | D．before; \ |
Some consider digital TV_____ superior _____ satellite TV because it allows the same services to be delivered with clearer pictures than before.
| A．being; to | B．being; than | C．to be; to | D．to be; than |
---Mind if I play a record now?
---______________.
| A．Sorry, I don’t. | B．No, just do it, please. | C．Yes, go ahead. | D．Of course I do. |
I wonder what it is that counts when it _____ learning a foreign language.
| A．comes to | B．focuses on | C．speaks of | D．deals with |
My son __________ his clock when I went to get a cup I __________ in his study.
| A．was winding up; had left | B．would up; had forgotten |
| C．had wounded; left | D．was winding up; forgot |