—— It's no  easy task to catch a ticket on a website that receives l billion clicks daily．一一I can’t agree with you more．There      be errors for every single step

Teachers _______ be sensitive to the development level of each student so as to help them better. 

--- I don’t mind telling you what I know.--- You_________. I’m not asking you for it. 

—The speaker is a tall man with glasses.—Then it         be Mr. Smith, who is short and thin.

 — Isn’t that Ann’s husband over there?  — No, it ________ be him — I’m sure he doesn’t wear glasses.

Johnny’s uncle promises that the boy        get a nice present on Christmas Eve.

Days later, my brother called to say he was all right, but ________ say where he was. 

—Everyone in my class passed the exam.—Oh, really? It ________ difficult.

--- You needn’t take an umbrella. It isn’t going to rain.--- Well, I don’t know. It ______do.

If you often go to a gallery, it ______ well change forever the way you look at art.

The weather turned out to be fine. I       the trouble to carry the umbrella with me.

---I stayed at a hotel while in New York.---Oh, did you? You ________ with Barbara.

— _______ I ask you something, if you are not busy?—Yes, of course you _______. 

The careless man received a ticket for speeding . He ____ have driven so fast .

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.

---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?