I) chia động từ
1.(she/join). in our trip next summer ?
2.I (not meet). vẻ at school since last week.
3.Listen ! Why (the baly /cry)?
4.we (not go) out yesterday because of the rain .
5.How long (the children /know).
6.(she/feed). The cat yet?
7.toyota cars (make). in japan.
8.The classrooms (clean). every day.
9.the weather (be) guite good since Christmas .
10.If we (cut). the -trees ,our environment (be). polluted.