(A number) of these (who) (study) engineering is improving (steadily).A.A numberB.whoC.stu
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(A number) of these (who) (study) engineering is improving (steadily).
A.A number
B.who
C.study
D.steadily
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正确答案:A
解析:应改为the number of 。 the number of sth.表“……的数量”,做主语时,谓语动词用单数形式,而the number of表“许多,很多”时,后面加可数名词复数做主语,谓语动词用复数形式
