—Tom, you look tired this morning. What’s wrong?—I was so busy that I didn’t go
题型：不详难度：来源：
—Tom, you look tired this morning. What’s wrong?
—I was so busy that I didn’t go to bed________12 o’clock last night.| A．until | B．when | C．though | D．unless |
|
答案
| A |
解析
| 本题符合not···until的结构，表示直到···才，故选答案为A |
举一反三
You will fail the English exam ________ you study hard.| A．however | B．anyway | C．unless | D．but |
|
_______we felt tired, _______we felt happy.
A. Though; but B. Though; / C. If; but |
His father has worked in this factory________ he came here in 1985.
A. for B. since C.when |
—Have they visited the zoo many times.
—______________. Only once.
A. Yes, they have B. No, they haven’t C. No, they have |
In this school, ______ students work very hard, ______ they are very happy.| A．although, / | B．although, but | C．/, although | D．but, although |
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