Many students think hard to learn English well.

Do you know the _________about the writer? ———-Yes, he has _________for 2years.

Do you mind telling us something about this area?— Not at all. ________ of the land in this area _________ covered with trees and grass.

Look! The wind is blowing strongly.—Yes, we should keep all the windows and doors ___.

The ruler is just the chair, on thefloor. Can you see it?[ ]