【題目】Some students are so _____ that they often make mistakes in their homework.

A. careful B. cheerful C. careless D. successful

【答案】C

【解析】句意：有些學(xué)生如此粗心以至于他們經(jīng)常在作業(yè)中犯錯(cuò)。careful認(rèn)真的；cheerful高興的；careless粗心的；successful成功的。根據(jù)they often make mistakes in their homework.

可知在作業(yè)中經(jīng)常出錯(cuò)，故表示粗心，故選C。

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