The students in Grade 3 are busy the exam now.
The students in Grade 3 are busy the exam now.
A.get ready toB.to get ready forC.getting ready toD.getting ready for
A.get ready toB.to get ready forC.getting ready toD.getting ready for
英语人气：982 ℃时间：2019-11-12 23:37:35
优质解答
D be busy doing sth
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