There was a big fire burning, but it was ____ quickly
We can have ________ bluer sky if we create _________less polluted world.
The park is far away from here indeed.It’s about _________walk.
Mr.Green,do you know ____________________? ----July10.It will last a month.
We wonder if our teachers _____to our graduating party next weekend. If they _______,we’ll be very happy.
---To achieve a bright future,we should _____study hard _____keep in good health. ---I agree with you.