原题:
题型:单项选择-四个选项
Jeff can’t come to the party, because he’ll ________ help his sister with the housework.
| A.must to | B.have to | C.has to | D.need to |
题目考点:情态动词的用法
| A.must to | B.have to | C.has to | D.need to |
题目考点:情态动词的用法
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