--There is somebody knocking at the door. Who________ it be?

--I’m not sure. It ________ be a postman.

A. may; must B. will; can

C. can ; may D. may ; will

--Sorry, I overslept. I forgot to set the alarm.

--Your clock ________. Perhaps you should buy a new one.

A. never worked B. never works

C. had never worked D. is never working

—Have all the students known that our class will visit the factory this afternoon?

—Yes. Every student______ about it.

A. tells B. told

C. has told D. was told

—Can I have a day off tomorrow, Mr. Johnson?

—_______. I can’t do it by myself without you.

A. Forget it B. I’m afraid so

C. It depends D. Of course

—I hope to make decisions by myself.

—OK. But remember _____ you do, you should think about the results.

A. whenever B. however

C. whatever D. wherever

—What a wonderful ___________ it is! You look lovely.

—Thanks. I took it in Paris last year.

A. photo B. watch C. stamp D. book

The cost of buying a house in Beijing is much higher , but Beijing is _______in traffic.

A. the most organized B. more organized

C. so organized as D. as organized as

Sometimes, Obama as well as his family_______like “Modern Family ”, The show makes them a good laugh.

A. watch shows B. are watching shows

C. watches shows D. is watching shows

-----Did you have any problems in South Pole (南极）

--Yes. ____________ fresh vegetables like tomatoes

A. to find B. find C found D. finding

-- Why do you feel so unhappy?

--Bad luck . When I arrived at the airport, my flight __________.

A. took off B. would take off

C. was taking off D. had taken off