20.My little brother is very       ,so he often makes mistakes.(  )
A.carefulB.carelessC.care

分析 我的小弟弟很粗心,所以他經(jīng)常犯錯(cuò)誤.

解答 答案:B;careful細(xì)心的,形容詞;careless粗心的,形容詞;care照顧,動(dòng)詞;根據(jù)下句so he often makes mistakes推知上句句意:我的小弟弟很粗心;故選B.

點(diǎn)評(píng) 認(rèn)真比較三個(gè)選項(xiàng)中單詞的不同含義及其用法,然后結(jié)合語境選擇正確答案.

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