He is going to study hard at math. He wants to be ________ engineer.A．aB．anC．th
题型：不详难度：来源：
| He is going to study hard at math. He wants to be ________ engineer. |
答案
| 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。 |
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