—How much ____the pair of trousers ? —Sixty dollars _____enough .

—Mom, I am hungry.—How about eating some _______?

— Could you please tell me something about the two_   ?— ____. They arc exchange students of No. 1 Middle School.

— What can I do for you?—  I want some _______. I am very thirsty.

 I am looking for a friend of ________ who lives in this neighborhood.