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

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

-- Mum，can I go on a holiday with my classmates this summer vacation?-- OK．You __________ have a chance if you get along well with your studies．

The boss has given everyone a special holiday, so we ________ go to work tomorrow.  

You _______have a wrong number. There’s no Mr Johnson here.