I told Sally how to get here, but perhaps I ______for her.

 You __________be tired—you’ve only been working for an hour.

You'd better not ride the bicycle on snowy days; you ______ fall．

Within a few years China ____ well have the most advanced railway industry in the world.

—Please don’t tell anybody．—I     . I promise．

According to the factory safety rules, all accidents _____ be reported to the safety officer.

 —Are you coming for dinner?　—I’m not quite sure. I ______ go to my uncle’s instead.

According to the latest study，most traffic accidents     be prevented if drivers are careful enough．

My computer ____start, no matter how hard I try.-lt might have crashed.

 Whether dying patients      be helped to end their lives is a tough moral question.

---who______it be that is knocking at the door? ---It_______be Father, but I’m not sure.

 She is a quiet girl at school，but sometimes she _____ be very naughty.

She was greatly shocked at the scene before her eyes. Never did she expect that the local conditions ______ be so awful.

I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.

—Who bought you the fresh flower?—It’s from my girlfriend, if you ______ know.

—I heard they went skiing in the mountains last winter. —It       true because there was little snow there.

It             be the vocabulary that caused you the problem in the exercise because you know a lot of words.

—Can I pay the bill by check?—Sorry，sir．But it's the management rules of our hotel that payment     be made in cash．

—There's someone knocking on the door．Who        it be?—It must be Mary．She promised to be here at 8：00．

---Is there any breaking news ?--- How shameless ! The Japanese government ______nationalize our Diaoyu Islands!