More and more teenagers play ______active role _____volunteering to help others.

题型：单选题题类：常考题难易度：容易

广东省肇庆市高要区金利镇朝阳教育集团2019届九年级上学期英语第一次月考试卷（含听力音频）

A、an; on B、an; in C、a; in D、the; at

举一反三

—Oh, it is European country with beautiful environment.

Tony is{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#}all the teachers.

Nothing can keep us from{#blank#}1{#/blank#}(exercise).

—Thank you very much.

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