I like junk food so much because ______ really delicious.

This skirt is too _______. Would you show me another one? —OK. Please try this one. It’s cheaper.

There are ________ students waiting in the hall, ________?

Is Jack still asleep in class?—I think he _______ be criticized if he goes on with it.

Sam is a very good man. He always tries __________ best to help others.