He was driving along a high road ________ his way to the hospital.

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I will never forget the day when the earthquake ________.

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She said she ________ the color TV set for about five years.

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－Did you go to work by bus today?

－No, I went on foot ________.

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If you don't want to go, ________.

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She ________ her arm ________ her face from the sun.

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You won't pass the exam ________ you study hard.

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－Are you going back by bus or on foot?

－I prefer walking ________ a bus.

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－It was so kind of you to have done all that for me.

－Oh, it was a ________.

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Do you know when he ________ here? When he ________, please let me know.

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