—Iwonderornottheanimalsignsare

— I wonder _________ or not the animal signs are kept in a fixed order.
— Oh, they should be.

A．if

B．whether

C．that

D．how

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— Did you go to Kunming on vacation?
— No, but it’s a good place _____ I often dream of going.

A．what

B．which

C．where

D．that

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They will telephone the police and complain about it the noise .

A．if; stops

B．unless; stops

C．if not; stops

D．unless; doesn’t stop

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— Bill, is the pink umbrella Anna’s?
— No, it _____ be hers. Hers is purple.

A．can

B．may not

C．would

D．can’t

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Mr Wang’s lessons are _____, so his students like him very much.

A．alive

B．live

C．living

D．lively

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Milk quickly goes bad in summer it is in a fridge(冰箱).

A．if

B．because

C．unless

D．when

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