(A number) of these (who) (study) engineering is increasing (steadily).

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问题 (A number) of these (who) (study) engineering is increasing (steadily).

选项 A、A number
B、who
C、study
D、steadily

答案A

解析 应改为the number。 the number of sth.表“…的数量”,做主语时,谓语动词用单数形式,而a number of表“许多,很多”时,后面接可数名词复数作主语,谓语动词用复数形式。
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