题目内容
It's time for us ________ morning exercises.Let's ________ downstairs.
A.do;go B.to do;to go
C.to do;go D.doing;go
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题目内容
It's time for us ________ morning exercises.Let's ________ downstairs.
A.do;go B.to do;to go
C.to do;go D.doing;go