Hurry up, or you ______ catch the train.

--- I had thought he would be nervous in this speech competition, but he turned out to be calm.
--- He        quite enough preparation for it.

When we were young, every evening my brother and I ___ stay at home waiting for my mother?

It’s beyond our comprehension that Jim, who tops the class in English, ________ have difficulty translating such a simple sentence.

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

The police still haven’t found the lost child, but they’re doing all they          .

---The work will take me another week. I’m really tired.
---I think you          as well consult an experienced worker.

Passengers _____ fasten their seat belts immediately after taking their seats. The belts should remain buckled during the flight whether or not the “fasten seat belt” light is on.

_______ we go to the McDonald’s?  I am sick of the food there!

--The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?
--________ my students have a try?