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题型：单选题题类：常考题难易度：普通

He was often seen _________ with charity work last year.

A、to help B、helped C、helping D、help

举一反三

Students can't be made ______ all day.

In the old days, they ____________ in the factory from morning to night.

The boy was made ______ the words again and again.

The machine has to be {#blank#}1{#/blank#} (修理). It's broken.

The boy was seen ______________ computer games in the net bar.

事实上，谁也不愿意被冷落。

In fact, nobody wants to be {#blank#}1{#/blank#} {#blank#}2{#/blank#}.

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