There are about seven ____ students in Grade Eight in Chezhan Middle School.

Have you found your lost dictionary?—-No,I haven’t found_____,but I bought _______this morning.

There used to ________ a school here.

May I take these books out of the reading room?– No, you _________.

Do you know the man ________ is reading the book over there?——— Yes, he is Mr. Green, our P.E. teacher.