21．They talk instead of homework. A．do B．to do C．doing D．did 【查看更多】

 

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They talk instead of ______ homework.

A．do        B．to do            C．doing           D．did

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They talk instead of ________ homework．

[　　]

A．doing

B．do

C．to do

D．to doing

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--I think students should be allowed to do homework with friends．

-- ________．They talk instead of doing homework．

A．Yes，I think so           B．Good idea            C．No problem            D．I disagree

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－I think students should be allowed _______ homework with friends.

－I disagree. They talk instead of ________ homework.

A．do, doing

B．to do, to do

C．to do, doing

D．doing, to do

 

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－I think students should be allowed _______ homework with friends.

－I disagree. They talk instead of ________ homework.

A．do, doing

B．to do, to do

C．to do, doing

D．doing, to do

 

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