11. Drinking this water is not safe.
It’s not ________________________________________________________________________ .
12. Swimming across this river is dangerous.
It is___________________________________________________________________________ .
13. To do this exercise is not easy.
It’s ___________________________________________________________________________ .
14. It is difficult to open the window.
To open____________________________________________________________________
The window _______________________________________________
15. They are going to see a movie.
They will__________________________________
They intend___________________________________
16. I ought to go and visit Grandma after work.
I have______________________________________________
I must_____________________________________________
Loga
Sinh Học lớp 12
