Evidence has been found through years of study that children’s early sleeping problems are _______ to continue when they grow up.

When did Yang Juan begin to learn English—At the age of six, she began teaching _______ English.

Mr. Black or Mr. Smith can take this job , but I am interested in who is .

Oh, it’s so cool in the house. You _______ have turned on the air-conditioner, haven’t you?

The food tastes _________ and sells __________.