Sofar,largequantitiesofinforma

So far, large quantities of information _____ sent to the company by email, which has a great effect on improving the quality of its products.

A．has been	B．have been
C．was	D．were

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—No, I _________a lecture in another city.

A．gave

B．have given

C．had given

D．was giving

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—Could you do me a favor to hand out these papers?
— ___.

A．Yes, I could

B．It’s my pleasure

C．With pleasure

D．Great

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A．celebrated

B．appreciated

C．greeted

D．congratulated

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—Why didn’t apologize to her?
—She drove away_______I could say a word.

A．before

B．after

C．until

D．unless

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Understanding________cultural habits of another nation is_______ difficult thing.

A．a; the

B．the ; the

C．the; a

D．/; a

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