_______ trees harms the living conditions of human beings.

题型：单选题题类：常考题难易度：容易

海南省海口市第十四中学2017届九年级上学期期中考试英语试题

A、Cutting down B、Cut down C、Cutting off

举一反三

— Great. I'm looking forward to __________ her.

A.(n.)烟 B.(v.)冒烟; 吸烟

David {#blank#}1{#/blank#} a lot of time {#blank#}2{#/blank#} difficult problems. He {#blank#}3{#/blank#} the first {#blank#}4{#/blank#} at last.

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