题目内容
He is going to study hard at math. He wants to be ________ engineer.
| A．a | B．an | C．the | D．/ |
B
解析试题分析：句意：他打算努力学习数学。他想成为一名工程师。a engineer 一名工程师，表示泛指。在可数名词单数的前面要用不定冠词。engineer 并不是元音开头，故不用an；the 表示特指，不符合句意，故选B。
考点：考查冠词。
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