单选题He did not go to school yesterday because he _____ his father who was ill.Amust have looked afterBwould have to look afterChad to look afterDshould have looked after
单选题
He did not go to school yesterday because he _____ his father who was ill.
A
must have looked after
B
would have to look after
C
had to look after
D
should have looked after
参考解析
解析：
句意：他昨天没去上学，因为他不得不照顾他生病的爸爸。A项must＋现在完成时，表示对已发生的事情的一种肯定的猜测。B项是过去将来时。D项should＋完成时，表示应该做的事情而没有做，结合句意只有C项合适。
句意：他昨天没去上学，因为他不得不照顾他生病的爸爸。A项must＋现在完成时，表示对已发生的事情的一种肯定的猜测。B项是过去将来时。D项should＋完成时，表示应该做的事情而没有做，结合句意只有C项合适。
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