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.完成以下句子,用had to或must have been填空.

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.完成以下句子,用had to或must have been填空.
例如:He is very tired because he had to get up early this morning.
He didn't get up early this morning.He must have been tired.
例子里可否用he (must have to) get up early this morning.如果不能用,是不是因为有because在原因.请详解,
2.He didn't come to the office this morning.he______stay at home
这题书的答案是had to.我觉得must have to更适合.
He is very tired because he had to get up early this morning.他很累,因为今天早晨他一定是早起床了.用he must have been get up early this morning.另一种理解意思.(他累不是一定是早起床的原因.所以猜测的话,一定可以用must have been,
第2个,他早晨没有来办公室,不一定是呆在家里,也有可能去另的地方.所以也可又用猜测must have been.上面打成must have to打错了.是must have been
.完成以下句子,用had to或must have been填空.
我不知道“must have to”你是怎么想出来的,或者在哪里出现,如果有出处,请指教；如果是你自己想出来的,请解释下理由.
must have to根本就不可能存在,要表示主观就用must,要表示客观就用have to,如果想表达主观和客观上都必须,那就用should或者其他词.所以对于第一题并不是because的原因.
题外话,第一句的逻辑不恰当,直白点,什么狗屁题目,要考查have to和must的知识点就换个题目,he is tired now because he got up early this morning.他现在很累是因为他今天早起.不需要强调主观或者客观,had to 多此一举.
第二题,must have been doing sth.不是stay,而是staying.
综上所述,基础知识没有掌握.
再问： 不好意思，这两题是考had to和must have been，不是must have to，是这打错了，问题补充我已经纠正了，报歉．谢谢你的解答，我明白了，谢谢．
完成以下句子,用had to或must have been填空. .完成以下句子,用had to或must have been填空. 用had to 或 must have been填空. 用must或have to填空,完成下列句子,注意时态 1.I am glad I don't______ go to 用must,have to,need完成句子 用must或have to填空 用have to或must填空. 用must have been/done或can*t have been/done 改写句子 （初三英语用have/has been to或have/has gone to完成下列句子.The children( 用have/has been to,have/has gone to或have/has been in填空 完成以下句子,用too,very或enough填空. 用can,can't,must或have to 填空