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44．A． how B．where C．when D．what 【查看更多】

 

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At first, we didn’t know _______to do.

A．how B．where C．when D．what

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At first, we didn’t know _______to do.

A．how              B．where            C．when             D．what

 

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At first, we didn’t know _______to do.
A．how B．where C．when D．what

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-- _________was your summer vacation?

--It was pretty good.

A．How         B．Where         C．When          D．what

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________ do they sell there?

[　　]

A．How
B．What
C．When
D．Where

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