The teacher says that Mary _____ work hard next year.A.will have to B.had better选哪个,为什么.

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TheteachersaysthatMary_____workhardnextyear.A.willhavetoB.hadbetter选哪个,为什么.TheteachersaysthatMary___

The teacher says that Mary _____ work hard next year.A.will have to B.had better选哪个,为什么.
The teacher says that Mary _____ work hard next year.A.will have to B.had better
选哪个,为什么.

The teacher says that Mary _____ work hard next year.A.will have to B.had better选哪个,为什么.
The teacher says that Mary ___will have to__ work hard next year.
答案是A
主句中老师说是一般现在时态,从句中说是明年,所以要一般将来时.所以使用will have to
had better是一般过去时,前后时态就有问题.

A 老师说明年Mary必须要努力了。