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题目
His mother is ill in hospital yesterday.He____look after her.A.needs to B.needs C.has toD.had to

提问时间:2020-06-25

答案
D
不得不
前后时态要一致
(注:楼主所给的题目时态打错了,应该是:His mother was ill in hospital yesterday.He____look after her.因为yesterday‘昨天’,已经过去,应该用过去时.)
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