—Have you known Dr. Jackson for a long time?—Yes，since she _______

—Have you known Dr. Jackson for a long time?—Yes，since she ________ the Chinese  Society.

#99164

has joined

joins

had joined

joined

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. At that time she ___ sit here like that for hours.

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will

would

had to

shall

---Let’s see if the basketball game has started yet. ---Started? It must be clear who   by now.

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is winning

wins

has won

would win

-----Hi, Nancy, I didn’t know you had come back. So have you graduated from college?---- Yes. I _____ French for 5 years in Nanjing.

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have studied

studied

had studied

am studying

—Hey ,it’s you, Jackie! I didn’t think you could be here．—A big surprise ,right? I _______ for you all the afternoon．

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have waited

was waiting

have been waiting

waited

Hurry up, or the tickets ________out by the time we get there.

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will have sold

will sell

have sold

will have been sold