Every day he begins to do his homework ___1on ten past seventh 2 in seven ten 3 at ten past seven 4until ten 说明原因

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Every day he begins to do his homework ___1on ten past seventh 2 in seven ten 3 at ten past seven 4until ten 说明原因

Every day he begins to do his homework ___1on ten past seventh 2 in seven ten 3 at ten past seven 4until ten 说明原因
Every day he begins to do his homework ___
1on ten past seventh 2 in seven ten 3 at ten past seven
4until ten 说明原因

Every day he begins to do his homework ___1on ten past seventh 2 in seven ten 3 at ten past seven 4until ten 说明原因
3
一个时间点,介词用at

几点前面好象不用ON
所以不选1
也不用IN 所以不选2
until要用延续性动词 而begin是短暂性动词
所以答案是3

3 应为七点十分是一个具体的点时间!
如果是接星期几的话 要用ON
接早上中午晚上要用IN

3

这是初1的内容啊~~~
时间前面加at
选3