1)You must keep your room tidy
2)No body has seen Tim since he left school in 1990
3)They call the big machine in the yard a combine harvester
4) Jane reads a book after dinner
5) He is writing a letter
6)they are playing table tennis
7)Under Ho wrote "Nhat ki trong tu"
8)Peter is doing his homework
9)Someone visited you yesterday
thành :
1- Your room must be kept by me.
2- Tim has been seen since he left scholl in 1990.
3)- the big machine is called in the yard a combine harvester
4) a book is read by Jane after dinner.
5) a letter is being written by him.
6) table tennis is being played .
7) "Nhat ki trong tu" was written by Under HO .
8)Peter's homework is being done by him.
9)you were visted yesterday.
huhu mấy bài này gần đây tớ toàn làm sai không à ,mà hôm nay tớ mới lên ,thông cảm nhé