Unlesstospeak,youshouldremains

Unless ________ to speak, you should remain silent at the conference.

A．invited

B．inviting

C．being invited

D．having invited

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Jane requested that Mr. Smith _________ her another chance.

A．gave

B．give

C．gives

D．would give

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I asked my boss for a month’s holiday and, _________, she agreed.

A．what’s more

B．that is to say

C．in other words

D．believe it or not

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The boss of the company had _________ his friend’s good advice, which led to the failure of his business.

A．considered

B．suffered

C．ignored

D．discussed

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Many students believe that the choice of their universities and courses should __________ their own interest.

A．base in

B．base on

C．be based in

D．be based on

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− Do you know the most ancient city in China ─ Xi’an well?
− No, this is the first time I ___________ here.

A．came

B．have come

C．am coming

D．come

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