You must avoid ________ the mistake again when you have the same exercise ________.

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A．making, to do

B．making, to be done

C．to make, to do

D．to make, to be done

________ improve your English, you must work hard at it.

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The Red Army ________ 25 000 Li on the Long March.

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On her birthday, Mary received three presents, ________ the one you gave her.

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________ we can't get seems better than ________ we have.

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He hasn't come yet. What do you consider ________ to him?

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________ electricity plays such an important part in our daily life?

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Father: Everyone says you are a good student. You never fall asleep in class, do you?

Son: ________.

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A．Yes, sometimes

B．Yes, I did

C．Yes, never

D．No, I didn't

The manager, as well as his children, ________ going to Shanghai on holiday.

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 I'm too sleepy.

 You really should stop ________ to bed.

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