If you go into a store and feel that the clerk is being rude, stop and think that she____ a tough day, and put yourself in her shoes. 

It ____ be our headmaster. He has gone to Beijing.

We _____ live in a small flat but last year we bought a house.

--Oh? ______ you leave ? Stay a bit longer.-- Sorry, I’ve got an early start tomorrow morning

 Although this         sound like a simple task, great care is needed.

She ______ find any ______ employment.

―How come I didn’t get the message that we were to have the meeting at 4 pm? ―Well, your phone ________ it．

--Who is the person talking with you just now? -- Well, if you ______ know, his name is David.

---Must I see a doctor right now? ----No, you______see a doctor for the time being.

—_____ I invite Jack to the party? 　  —Yes, it’ll be nice if you _____. 　    

--I can’t understand why our boss is late. --He _____the early bus.

I’m feeling sick. I __________so much chocolate.

. -- You see, our plan has been totally ruined! -- Dear me, I _______ his advice.

The law of Venice says if anyone tries to kill or murder any citizen of Venice, everything that he owns      be taken away from him.

Don’t worry. You _______ have the tickets for the games.

One thing’s for sure, the fire _____by some cigarette butts. 

一Professor Li, ______the student start at once or wait a while?     一At once.

— How could I thank you enough? —Don’t mention it. Any other man_________ that.

Swimming alone ___be ____dangerous. Do be careful.

---Have you found your book yet? ---No. I’m not sure where I ___it.