题目内容
I always sleep with windows open _______ it is too cold outside.
| A．until | B．if |
| C．that | D．unless |
D
解析试题分析：句意：我总是开着窗户睡觉除非外面很冷。until 直到；if 如果； that那；unless除非。根据前后句子句意可知该选D。
考点：考查连词。
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| A．from | B．until |
| C．on | D．since |
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| A．not only; but also | B．both; and |
| C．either; or | D．neither; nor |
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---I didn’t believe I could do it I got to the top．
| A．until | B．unless | C．after | D．when |
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| A．though | B．when | C．unless | D．because |
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| A．only if | B．until |
| C．so that | D．even though |
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| A．Because | B．So | C．Although | D．But |
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| A．because | B．if | C．though | D．so |
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| A．who | B．which | C．whose | D．what |