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题型：单选题题类：模拟题难易度：普通

I think the most helpful invention is light bulb. It seeing in the dark, and it gives people more time to work and play every day.

A、used to B、is used to C、is used for

举一反三

Mount Xiaolei is not far away from here, but it will still take us a few hours there by bike.

Dick decided to lose {#blank#}1{#/blank#} (weigh) by eating less and doing more exercise.

It's time ________ the weather report. Turn on the radio, please.

She was tired after {#blank#}1{#/blank#} (walk) for three hours.

My uncle is an engineer. (保持句意基本不变)

My uncle {#blank#}1{#/blank#} {#blank#}2{#/blank#} an engineer.

It is generous ____ him ____ so much money to the people in poor areas.

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