----- Nội dung dịch tự động từ ảnh -----
11.I (try)
on the shoes before I bought it.
12. Mr. Tom's parents (live)
in the Philippines for twenty years before they
(move)
to Vietnam in 1984.
13. When he came to the airport, he realized that he (leave)
his passport at home.
14. Yesterday, I (iron)
my clothes while my sister (clean)
the kitchen.
15. Peter (turn)
off the radio before ten last night.