题目

The cruel mother________at the poor daughter repeatedly with a stick because she didn't do well in her studies. A．beat       B．hit C．struck         D．knocked   答案： C 四个选项中，beat指连续敲打，hit指击中，两个词都常作及物动词；knock at是“敲打”的意思，根据该句的语境，用木棍打某人，应该用strike。

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