2．A．do B．does C．to do D．doing 【查看更多】

 

題目列表(包括答案和解析)

Betty doesn’t often ________ her work at home.

A．do

B．does

C．to do

D．doing

 

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I'm trying ________ well in my lessons.

[　　]

A．do
B．does
C．to do
D．doing

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I'm trying ________ well in my lessons.

[　　]

A．do
B．does
C．to do
D．doing

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Tony is busy _______ his homework.

A．doing

B．do

C．to do

D．does

 

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Tony is busy _______ his homework.

A．doing

B．do

C．to do

D．does

 

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