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题型：单选题题类：常考题难易度：普通

too much sugar is bad your teeth.

A、Eat; to B、Eating; to C、Eating; for

举一反三

In cold winter, the temperature in Harbin often remains zero all day.

It is important ________ people ________ learn team spirit.

I'm good ________ swimming. I think it's good ________ my health.

—When is Jay's concert?

—It's __________ three o'clock __________ the afternoon of July 18th.

I haven't seen my grandma for a long time. I can't help her very much.

—What can you see ________ the tree?

—Aha! Koalas! Seven of them!

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