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题型：单选题题类：真题难易度：普通

We should thank the man. He always does what he can us.

A、helps B、to help C、help D、helping

举一反三

I often see Li Ming ______ on the playground.

— If we don't protect some valuable animals, they will ____ .

— So we should try our best ____ them.

My father tries________vegetables eleven to twelve times a week.

As students, what can we do _______ our earth cleaner and safer?

You be a doctor like your father. You can do what you like.

I'm not going to school for classes tomorrow, but {#blank#}1{#/blank#}(play) soccer.

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