Viết lại câu giữ nguyên nghĩa dựa vào những từ cho trước

1 As we were walking across the field, we saw a plane fly past.
-> Walking _________________________________________
2 Why didn't you learn the lesson ?
-> You should _______________________________________
3 Maradona does not play football as well as he did.
-> Maradona used ___________________________________
4 The window was so heavy that mary could not push it open.
-> The window was too _______________________________
5 " Where have you been ? " Mary said to me 
-> Mary ___________________________________________
6 My advice is to buy yourself a new car 
-> If _______________________________________________
7 I seldom went shopping althought I lived in a big city 
-> Seldom __________________________________________
8 " If I were in your position ", he said, " I would stay at home and rest."
-> He advised________________________________________
9 jane was crossing the street when i saw her
-> I  saw ____________________________________________