题目内容

It’s quite warm here; we __________turn the heating on yet.
A．couldn’t B．mustn’tC．needn’tD．wouldn’t
C
考查情态动词。couldn’t不能；mustn’t禁止；needn’t不必；wouldn’t不会。
根据上文“这里相当暖和”可以推知下文应该是：我们没必要开暖气。故选C。
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