◎ 题干
—I've been trying to            him for twenty minutes. Why won't he stop crying?
—Ah, Can't you see he is cutting onions?
[     ]
A.cheer on
B.cheer up
C.cheered on
D.cheered up
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I've been trying to him for twenty minutes. Why won't he stop crying? —Ah, Can't you see he is cutting onions? [ ]A.cheer on B.cheer up C.cheered on D.…”主要考查了你对  【实义动词】【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。