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Unless to speak.you should remain silent at the conferenee. A. invited B. to invite C. invite D. inviting 【查看更多】

 

題目列表(包括答案和解析)

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

A．invited

B．inviting

C．being invited

D．having invited

 

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．_________we are allowed- , we can’t drink any beer.

         A．As long as; to do                  B．Unless; to

         C．Until; doing                  D．On condition that; doing so

 

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Unless________ to speak, you should remain silent at the meeting.

A．invited

B．inviting

C．being invited

D．having invited

 

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A beam of light will not bend round corners unless______to do so with the help of a reflecting device .  A.having been made       B.being made       C.made      D. you make 

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In the lecture, little Tom kept silent all the time unless _________ to express his opinion.

A. he invited               B. he is invited           C. invited                     D. being invited

 

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