Bill won’t make any progress_____he studies harder than before.A．ifB．whenC．becau
题型：不详难度：来源：
Bill won’t make any progress_____he studies harder than before.| A．if | B．when | C．because | D．unless |
|
答案
| D |
解析
本题表示的否定的让步，意思更符合，他不能取得进步，应该是不努力的造成的，
表示否定的意思只有D,unless(如果不，除非）。 |
举一反三
| It’s very late at night, ____ our teacher is still working . |
His hobby is ________ watching TV ________ playing the piano．It’s reading books．| A．either；or | B．both；and | C．neither；nor | D．not only；but also |
|
—Would you like to go with me?
—I’d like to, _________ you don’t want to go alone.
A. until B.if C.after |
| Hurry up, ____________ you will miss the early bus. |
| We have happiness, ____________ still we have trouble sometimes. That’s life. |
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