- 二一组卷

题型：单选题题类：常考题难易度：普通

江苏省丹阳市吕城片2018-2019学年七年级下学期英语第一次调研考试试卷

There are many students _________ their homework in the classroom now because there is a lot of homework __________ today.

A、doing, doing B、to do, to do C、doing, to do D、to do, doing

举一反三

—I think it is because of the aging of population (人口老龄化).

Teenagers {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} {#blank#}6{#/blank#}.

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