--- He has to finish the experiment today. He must be in the lab,____?
---That s quite possible.
| A．mustn't he | B．won't he | C．doesn't he | D．isn't he |
As the world’s population continues to grow, the ___of food becomes more and more of a concern.
| A．worth | B．supply | C．package | D．list |
Imyself more－it was a perfect day.
| A． | shouldn't have enjoyed | B． | needn't have enjoyed |
| C． | wouldn't have enjoyed | D． | couldn't have enjoyed |
Mary worked here as a ____ secretary and ended up getting a full-time job with the company.
| A．pessimistic | B．temporary | C．previous | D．cautious |
——Hey, can I ask you a favor?
――_______
| A．Here you are | B．just as I thought |
| C．how is it going? | D．what can I do for you? |
The sunlight is white and blinding, _______ hard-edged shadows on the ground.
| A．throwing | B．being thrown | C．to throw | D．to be thrown |