题目内容
They won't let him out of the hospital ________ he's completely recovered.
| A.since | B.until |
| C.if | D.as |
B
考查状语从句中的连词。句意:直到他完全恢复他们才允许他出院。这里考查固定句型“not...until”,意思是“直到……才”。
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题目内容
| A.since | B.until |
| C.if | D.as |