21．---Is book on the desk useful one?---No, it isn’t. A．the; an B．the; a C．a(chǎn); the D．the;/ 【查看更多】

 

題目列表(包括答案和解析)

---Is ________book on the desk __________useful one?

---No, it isn’t.

A．the; an        B．the; a         C．a(chǎn); the        D．the;/

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一Is ______ book on the desk ______ useful one?

一No, it isn’t．

A．the；an        B．the；a           C．a(chǎn)；the        D．the；the

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－Is ________ book on the desk ________ useful one?

－No, it isn't．

[　　]

A．the…an

B．the…a

C．a…the

D．the…/

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