Life is unpredictable; even the poorest __become the richest.

— I’ve prepared all kinds of food for the picnic.
—Do you mean we_____ bring anything with us?

It ________ be the postman at the door.It's only six o'clock.( 2011·江西)

I'm afraid Mr.Harding ______ see you now.He's busy.

---You are sweating. ______ I fetch you some water?
---It’s so kind of you.

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

Thanks to his pension, Li Zhentian, _____ give each of his grandchildren RMB 5 as a Chinese New year gift for the first time.

Do some warming up exercise before sports. Or you _______ hurt yourself.

She ______have stopped her work halfway.

When we were young, every evening my brother and I ______ stay at home waiting for our mother.