You’d better put on a heavy coat.Sometimes it________be very cold here at night.

—Jenny took the 8： 00 bus to Guangzhou this morning.
—Really? She ________ the 9：00 train. It's much more comfortable and safer to travel by train.

—I regret to say that I failed to rank first in the terminal exam.
—Come on，nobody ________ win all the time.

These days some young people just ________ work hard because they have got used to the easy life provided by their parents.

It is beyond my understanding that many adults ________ be so crazy about Harry Potter series.

—Look，I’ve bought some bread，including your favorite flavor.
—You ________ any because we still have plenty at home.

Even students of average intelligence ________ become top students by improving their study habits.

—God！My cell phone is missing.
—You ________ have left it at home.I heard you telephone our daughter in the bathroom.

I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.                                                    (2012·新課標全國，30)

When I was a child，I ________ watch TV whenever I wanted to.        (2013·江西，29)