15 . Mexico City , which has a population of over milion , is prol city in the world .
16 . This is Henry , who sister works for my father .
17 . He's the man who people like at fist sight .
18 . Could you iron the trousers who are hanging up behind .
19 . Where is the girl who sells tickets .
20 . That radio which is on the table is not yours .
21 . The woman whoes is speaking to Tom is her mother .
Cho mình hay nhất cho nhóm ạ !
Chúc bạn học tốt !