题目内容


The little girl was jumping __________ in the kindergarten, waiting for her mother.
A.upside downB.back and forthC.back to forthD.up and down
D
考查词组辨析:A. upside down颠倒,B. back and forth来回D. up and down上下,句意是:小女孩在幼儿园上上下下的跳,等着她的妈妈。选D。
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