----- Nội dung dịch tự động từ ảnh -----
4.
1. While I (clean).
photos.
out my cupboards, I found these
2. Sam is studying hard. He (have)
3. This brochure says that the big sale (start)
the flood victims still (wait)
his exam this Friday.
next Friday.
when the rescuers came?
5. 1 (fall)
asleep last night when I (hear)
a knock at the door.
6. When/while I finished my lessons yesterday, my friends
were waiting for me.