题目内容
I won’t leave the classroom until my homework ______.
| A．finishes | B．is finished |
| C．will finish | D．are finished |
B
解析试题分析：句意:直到完成作业我才离开教室。这句话中使用的是not…until句型，意思是直到…时候，才…。在until从句中的主语是my homework，根据句意可知，它和动词finish之间构成被动的关系，应该用被动语态，并且用一般现在时，故选B。
考点：考查动词时态和语态。
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