I ________ violin lessons every two weeks, but I think I'll make it every week from next month.

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Apples are usually sold by ________ weight, and eggs are sometimes sold by ________ dozen.

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－Who knocked at the door?

－I've no idea. I just pretended nobody was at home, so I didn't ask who ________ was.

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Not only I but also she ________ afraid of dogs.

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Each of us should make a contribution ________ our country.

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Mary looks ________ her father.

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________ in the sun, he looked worried.

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She wishes they ________ treat her as if she ________ a child.

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Lily's ________ subject is computer.

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It ________ be difficult to finish the task in such short time.

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