(’16原创)—How's your trip to Mount Tai? Is the mountain as beautiful as before?
—It ________ be, but it is seriously polluted.
A.must B.should C.need D.can
(’16原创)After you read the article “Why fast food is slowly killing you”， you ________ stop eating fast food.
A.can B.may C.have to D.could
(’16原创)When the teacher speaks, we students ________ keep quiet and take notes.
A.ought B.must C.have D.supposed to
—________I ask if you are fond of traveling by sea?
—Yes, very much. I think it's very exciting.
A.May B.Must C.Should D.Need
(’16原创)—Is your classmate Tony in the classroom?
—No, he ________ be there. I noticed him leave the classroom and go towards the sports center three minutes ago.
A.needn't B.shouldn't C.can't D.mustn't
(’16原创)—________ you come with me to Lang Lang's piano concert this evening?
—I'd love to, but I have to prepare for my math test.
A.Should B.May C.Must D.Can
