Many of them turned a deaf ear to his advice, _______ they knew it to be valuable.
| A．as if | B．now that | C．even if | D．so that |
Very loud noise＿＿＿＿＿make people ill or drive them mad.
| A．should | B．can | C．need | D．must |
＿＿＿＿＿he come, the problem would be settled.
| A．Would | B．Should | C．Shall | D．If |
Without your help, I ＿＿＿＿the exam last term.
| A．failed in | B．would have failed | C．wouldn’t pass | D．would fail |
The young man insisted that he＿＿＿＿＿nothing wrong and＿＿＿free.
| A．did； set | B．had done； should be set |
| C．do； be set | D．had done； must be set |
You must be a student, ＿＿＿＿＿＿＿＿you?
| A．wasn’t | B．are | C．mustn’t | D．aren’t |