这三个题应该怎么填?望有解答思路或知识点批注.1. I think _______ vocabulary lists______ us a lot. AA.make ;help B. making;helps C.makes;helping D.making;help

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这三个题应该怎么填?望有解答思路或知识点批注.1. I think _______ vocabulary lists______ us a lot. A
A.make ;help B. making;helps C.makes;helping D.making;help

B,making vo.lists 是主语,单数动词用第三人称