A well­written composition ________ good choice of words and clear organization.
A．calls onB．calls for
C．calls upD．calls off
B
B　考查動(dòng)詞短語。句意：一篇好的作文需要選詞精確恰當(dāng)，條理清晰。由句意可知選call for“需要”。
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