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题型：单选题题类：常考题难易度：普通

—What do you think of Ann?
—Ann is so careful that she always goes over her exercises to ______ there are no mistakes.

A、look for B、make sure C、find out D、think about

举一反三

Could you please _____ the radio a bit ? It's too loud.

Nowadays more and more people ________ food safety.

His mother _______ at the age of 90.

— Please don't laugh at this poor boy.

一 Sorry, Mum. I won't do that again.

—Where did they volunteer last weekend?

—They went to the hospital to______________ the sick kids.

不要对我大声叫喊。

Don't {#blank#}1{#/blank#} {#blank#}2{#/blank#} me.

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