Have you ________ spoken to a foreigner?

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My mother was ill in hospital. I ________ look after her.

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How long may I ________ the book?

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--- Where is John?

--- He ________ the aquarium.

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--- That place is not interesting at all.

--- ________ of us wants to go there.

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I think Chinese food is quite different ________ American food.

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It takes me nearly half an hour to go to Korea by ________ air.

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--- Where is your father?

--- He ________ Beijing. He ________ Beijing twice before.

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A．has been; has gone to

B．has been to; has been to

C．has gone to; has gone to

D．has gone to; has been to

--________ has Joe been playing baseball?

--Since he was ten years old.

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A. How often

B. When

C. How long

I looked for my lost dog, but I didn't ________ it.

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