单项选择（每题1分）We must think twice _____ we make the final decision.A．whenB．whileC．un
题型：不详难度：来源：
单项选择（每题1分）
We must think twice _____ we make the final decision.| A．when | B．while | C．until | D．before |
|
答案
| D |
解析
| 连词辨析。When当……时 ；while一边……一边；强调动作同时进行；until直到，常和not连用；before在……之前。句意：在我们做最后决定之前，我们必须思考两次。（必须三思而后行）。结合语境可知选D。 |
举一反三
| Not ________ I stepped into Grade two did I choose to study arts. |
Many of the students turned a deaf ear to his advice, they knew it to be valuable．| A．as if | B．now that | C．even though | D．so that |
|
Sally,a shy girl ,never speakers in public she is asked to,never!| A．until | B．unless | C．even though | D．as though |
|
Many of them turned a deaf ear to her advice, _______ they knew it to be valuable.| A．even though | B．now that | C．as if | D．as long as |
|
So far, the disease has not been _____ terrible as it seems to be. |
最新试题
热门考点