_________ for the free tickets, I would not have gone to the films so often.
| A．If it is not | B．Were it not | C．Had it not been | D．If they were not |
．—Did you listen to the speech?
—No, we ________ it. But we had a lot of traffic on our way.
| A．must have attended | B．must attend |
| C． could have attended | D．should attend |
．The theory is true _______ the hotter a body is, the more energy it gives off.
| A．that | B．when | C． which | D．what |
The desks and seats can be ________ to the height of any child．
| A．devoted | B．adjusted | C． accustomed | D．adopted |
—I saw Tom drinking alone just now.
—But as far as I know, he ________ little.
| A．drinks | B．is drinking | C． has drunk | D．had drunk |
The teacher suggested we do the exercises with great ________ though they were easy.
| A．expectation | B．caution | C． ambition | D．assumption |