【題目】It takes Jack ______ hour to practice playing _______ volleyball every day.

A. a; / B. an; the C. an; / D. a; an

【答案】C

【解析】

試題分析：句意：每天Jack花費(fèi)一個(gè)小時(shí)的時(shí)間練習(xí)打排球。a/an是不定冠詞，修飾可數(shù)名詞單數(shù)，表示泛指一個(gè)……，an用于元音發(fā)音開頭的單詞前；the 是定冠詞，表示特指這個(gè)。第一個(gè)空表示一個(gè)小時(shí)，hour是元音發(fā)音開頭的，故用an修飾；第二個(gè)空是固定短語play volleyball，在球類運(yùn)動(dòng)的前面不用冠詞，故應(yīng)選C。

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