You’d better ______ the water until it has been boiled.

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问题 You’d better ______ the water until it has been boiled.

选项 A、not to drink
B、not drink
C、not drunk
D、not drinking

答案B

解析 本题测试的是动词不定式的用法,had better+动词原形意为“最好干……”。其否定形式是had better not+动词原形。
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