连词成句:1.did ,when ,come,you,back 2.need ,picnic,our,we,for,food

问题描述:

连词成句:1.did ,when ,come,you,back 2.need ,picnic,our,we,for,food
3.want,be,you,do,to,team,our,in,football

When did you come back?
We need food for our picnic.
Do you want to be in our football team?