Mother told Tom to watch the milk until it boiled and then__

Mother told Tom to watch the milk until it boiled and then__off the gas. 为什么是 turn.不是turned
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hrh3h 1年前 已收到1个回答 举报

sapphrice 春芽

共回答了11个问题采纳率:100% 举报

这是tell sb to do A and do B 的结构

told 之后有两个不定式短语做宾补
to watch the milk until it boiled
to turn off the gas
当两个不定式被并列连词and 等连起来时第二个不定式常省去to
所以此空为动词原形


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1年前

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