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______________ pollution can cause breathing problems.

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If you exercise regularly, you ______________ healthy.

Complete the sentence with the correct form of the words in brackets.

If you _________________ (be) busy, I’ll look after your kids.

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The word UFOs stands for Unidentified ______________ Objects.

Complete the sentence with the correct form of the words in brackets.

We _________________ (swap) gifts this afternoon.

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I will ______________ a survey on the effect of water pollution.

Rewrite the following sentences

It’s important to recycle garbage. (SHOULD)