(2013·潍坊市高三二模)Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry.

(2013·南昌三中模拟)—Do you think Jack will lend us a hand?—He is the last one to help others. He ________ lend his hand, though.

(2012·重庆高考)—________ you interrupt now? Can't you see I'm on the phone?—Sorry Sir, but it's urgent.

(2013·天津高考)No one ________ be more generous; he has a heart of gold.

(2013·辽宁高考)Harry is feeling uncomfortable.He ________ too much at the party last night.

(2009·全国卷Ⅰ)What do you mean, there are only ten tickets？There________be twelve.

(2010·四川高考)—________ I take the book out?—I'm afraid not.

(2010·辽宁高考)Doctors say that exercise is important for health, but it ________ be regular exercise.

(2012·辽宁高考)One of our rules is that every student ________ wear school uniform while at school.

(2012·上海高考)The new law states that people ________ drive after drinking alcohol.

(2010·北京高考)—Good morning. I've got an appointment with Miss Smith in the Personnel Department.—Ah, good morning. You ________ be Mrs. Peters.

(2011·江西高考)It ________be the postman at the door.It's only six o'clock.

(2013·安徽高考)It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.

(2013·重庆高考)—What are you doing this Saturday?—I'm not sure, but I ________ go to  the Rolling Stones concert.

(2012·全国卷Ⅱ)I'm going to Europe on vacation together with John if I ________ find the money.

(2013·湖南高考)He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.

(2013·江西高考)When I was a child, I ________ watch TV whenever I wanted to.

According to the rules and regulations, all payments ________ be made in cash in the shopping center.

________ we go to the McDonald's? I'm sick of the food there.

With all his money, he ________ worry about a little thing like 5 cents!