Waste paper everywhere. It's our duty to keep the school clean.

题型：单选题题类：常考题难易度：普通

四川省师范大学附属中学2017-2018学年九年级上学期英语Unit 7 Section B同步习题

A、throws B、are thrown C、shouldn't be thrown

举一反三

Sharing bikes{#blank#}1{#/blank#}in the right place．

—For two weeks.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} tables they are! They {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#}at once.

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