1.What are busy _____these days?
问题描述:
1.What are busy _____these days?
A.do B.doing C.to do D.done
下面图形有几个内错角?
/\
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/ \
/____\
就是一个三角形中间画一条直线
/\
- /--\-
/----\
答
1.B
2.6对