Tony ________ in the factory since he finished school.

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It's time for supper now. Let's ________ it.

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He has been ________ for his credit card for an hour.

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--- Alice, how long ________?

--- I ________ for five hours.

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A．did you skate; skated

B．have you been skating; have been skating

C．have you skating; have been skating

D．have you be skating; have skating

________ the wrong bus will waster time and money.

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Mike can't go to watch the football game because he hasn't finished ________ his homework.

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This is a very valuable treasure. I will have it ________ in my safe.

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He doesn't like swimming. He'd like ________ in winter.

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--- Why do you look so tried?

--- Oh, I have worked ________. I need a rest.

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________,please answer these four questions.

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