______ apple fell from the tree and hit him on ______ head.

A. An; the     B. The; the     C. An; 不填     D. The; 不填

A


解析:

一個(gè)蘋果，可數(shù)名詞；hit sb on the head 固定用法。擊中某人某個(gè)部位用定冠詞。

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