—Crum, help yourself to the fish my mother cooked!—Thank you. En, it looks__________ and tastes__________.

In India,about_____ of people live in the country and some of them live a very poor life.

—Do you practice how to escape from dangers every term?—Of course. Our school pays much attention to the ______ of safety.

Lee is new in Nanchang.  Maybe he needs a _____for sightseeing.

Have you returned the book to the library ____?         --- Yes, I have ____ returned it.