作业帮I'm too busy__my homework__walk my dog every day.A.to do,do B.doing,do C.to do./ D.doing,/
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I'm too busy__my homework__walk my dog every day.A.to do,do B.doing,do C.to do./ D.doing,/
I'm too busy__my homework__walk my dog every day.A.to do,do B.doing,do C.to do./ D.doing,/
I'm too busy__my homework__walk my dog every day.A.to do,do B.doing,do C.to do./ D.doing,/
应该是doing,to do
A