—Everyone in my class passed the exam.
—Oh, really？It________difficult.
| A．must be | B．needn’t have been |
| C．can’t have been | D．mightn’t be |
--- Would you like me to show you the way?
--- ____________.
| A．That’s very kind of you | B．Yes, you could |
| C．Good idea ! | D．With great pleasure. |
Listen! His family must be quarrelling, ___________ ?
| A．mustn’t it | B．isn’t it | C．aren’t they | D．needn’t they |
_________ the window, my finger was seriously cut.
A. Having cleaned B, To clean
C, While cleaning D. While I was cleaning
His parents died when he was young, so he was _________ by his aunt.
A. taken up B. brought up C, brought out D. grown up
--- When can I use your computer?
--- Never! ___________ should you touch it.
A. In no time. B. At no time C. At any time D, At one time