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题型：单选题题类：常考题难易度：普通

高中英语人教版（新课程标准）2017-2018学年高二下册选修七Unit 2 Robots同步练习2

There are still many problems________ before we are ready for a long stay on the Moon.

A、solving B、solved C、being solved D、to be solved

举一反三

{#blank#}1{#/blank#}(thrill) at the good news, she couldn't say a word.

He was suspected of {#blank#}1{#/blank#} (毒害) his wife.

Don't drink {#blank#}1{#/blank#} (pollute) water, because it carries the virus.

You are responsible for feeding and {#blank#}1{#/blank#} (walk)the dog every day.

It's difficult for a small supermarket to {#blank#}1{#/blank#} (竞争) with the big supermarkets.

_______ his homework made his father lost in temper.

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