【題目】There is ________ “o” and ______ “n” in the expression “positive energy”.

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

【答案】B

【解析】

句意：在“正能量”的表達(dá)中有一個(gè)“O”和“N”。這里表示泛指，第一個(gè)空o是發(fā)音是元音音素；用不定冠詞an；第二個(gè)空n的發(fā)音是元音音素，用不定冠詞an。根據(jù)題意，故選B。

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