— We did not see him at the lecture yesterday．
— You ______ him, since I went to an international conference with him．
| A．mustn’t have seen | B．can’t have seen |
| C．couldn’t see | D．needn’t have seen |
Nowadays electrical energy from the sun has become the most widely used energy.
| A．comes | B．coming | C．to come | D．came |
The country has changed so greatly over the past three decades that it has grown my wildest imagination.
| A．in | B．of | C．without | D．beyond |
Creative people are in a better position to succeed in both university and society than who may just be good test-takers.
| A．that | B．those | C．one | D．they |
－This is a gas station! And you know smoking is forbidden here.
－Oh, terribly sorry.
| A．will | B．can | C．may | D．must |
More than 100,000 German credit cards are being replaced after fears personal data has been stolen.
| A．whether | B．which | C．that | D．when |