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The old people should ________(speak) to politely.

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Mr. King spent the whole night ________(search) the Internet.

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________you often ________(use) to________ (take) exercise in the morning？

No, but I often do it now.

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________(go) out for a walk after supper is really good for health.

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Mr. Hu________ (teach) us maths since 2002.

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He was good at science subjects, ________(especial) maths and physics.

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The school is going to put off ________(hold) the sports meeting.

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Could you come up with the idea for ________(make) money？

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It's our duty to help ________(protect) the environment.

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He ________(return) to Shanghai in two days.