--More and more students wear glasses in our school these days. --I agree with you. Students ___ keep on doing eye exercises to protect their eyes. A.should B.might C.shall
---- Excuse me, I am looking for a post office. Could you tell me_____?
---- OK. It’s not far from here; go ahead until you can find a hospital on the left, and the post office you are looking for is the opposite of the hospital.
---- Daddy, I failed English exam this time, I am not interested in it any more.
---- _____! You will be successful one day as long as you work hard at it.
-----Look! The girl dancing in the gym ____ be Joe. She is the girl who loves dancing too much, you know.
----- No, it ____ be her. Joe has gone to Shanghai.