Therearecertainwhenyouhavetoin

There are certain _______when you have to interrupt people who are in the middle of doing something.

A．chances

B．situations

C．occasions

D．opportunities

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相关试题

The company was named Gates Hall ______ a man named James Gates.

A．in need of	B．in search of
C．with the help of	D．in memory of

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When we were young, every evening my brother and I ______ stay at home waiting for our mother.

A．would

B．might

C．should

D．could

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I’d like to start my own business ---- that’______ I’d do if I had the money.

A．that

B．what

C．where

D．whether

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The doctor will not permit him _____ until his foot is better.

A．walk

B．to walk

C．walking

D．walked

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—Is Jack on duty today?
—It_____ be him. It’s his turn tomorrow.

A．mustn’t

B．won’t

C．can’t

D．needn’t

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