17..In the United States, bus travel doesn"t cost much as train travel, 　　?18.A．

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17..In the United States, bus travel doesn"t cost much as train travel, 　　?
18.

A．don"t they 　

B．does it

C．do they 　　

D．doesn"t it

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解析

略

举一反三

21.—It is raining cats and dogs.
22.　—　　　..
23.

A．So it is　　

B．So is it

C．Neither it is

D．Neither is it

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19.—My home is in that tall building over there.
　—　　　　　 ?

A．Can it see

B．Can see it

C．Can be seen it

D．Can it be seen

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22.—Boy, ____________
　—It is, looks like spring is coming soon.
　—Yeh, It"ll just be a few more weeks.

A．it"s really a nice day today, isn"t it?

B．what knid of weather are we going to have today?

C．do you think it is going to rain today?

D．what" it like outside today?

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30.Nothing is wrong with the radio___________?
31.

A．isn"t it　　　

B．is that　　　

C．is it　　　

D．isn"t that

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27.I don"t know_____________makes her afraid of having her business discussed.

A．what it is about Mary that	B．that is it abut Mary what
C．what is it about Mary that	D．that is about Mary what

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