– I’m very tired.
– We really should stop _____.
| A．to walk | B．walk | C．walking | D．walked |
“I heard they went skiing in the mountains last winter.” “It _________ true because there was little snow there.”
| A．may not be | B．won’t be | C．couldn’t be | D．mustn’t be |
“Is John coming by train?” “He should, but he _________ not. He likes driving his car.”
| A．must | B．can | C．need | D．may |
You _________ pay too much attention to your reading skill, as it is so important.
| A．cannot | B．shouldn’t | C．mustn’t | D．needn’t |
“Mike is often absent from class.” “Tell him he _________ answer for it if he goes on behaving like that.”
| A．shall | B．will | C．would | D．can |
When he was working there he caught a serious illness from _____ efforts he still suffers.
| A．which | B．that |
| C．whose | D．what |