2.they are going to ＿＿.a.dance b.dances c.dancing 3.what are you doing on sunday we are ...2.they are going to ＿＿.a.dance b.dances c.dancing 3.what are you doing on sunday we are going to ＿＿ .a.shopping b.go shopping c.shop ..怎么选,为什么?
问题描述：
2.they are going to ＿＿.a.dance b.dances c.dancing 3.what are you doing on sunday we are ...
2.they are going to ＿＿.a.dance b.dances c.dancing 3.what are you doing on sunday we are going to ＿＿ .a.shopping b.go shopping c.shop ..怎么选,为什么?
答
2 a
3b
be going to do sth
答
2. A. 3. B
go to do sth
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答
2.they are going to ＿＿.a.dance
3.what are you doing on sunday we are going to ＿＿ .
b.go shopping
be going to后面要用动词原形.