题目内容
--- Mum, I am feeling tired and sleepy now.
--- You so late last night.
| A.couldn’t have stayed up | B.mustn’t have stayed up |
| C.shouldn’t have stayed up | D.needn’t have stayed up |
C
解析
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--Mum, I don’t think I am qualified enough to do this.
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| A.that; that | B.how; that | C.what; that | D.how; how |