In the USA, one needs to make a(n)　　　 before seeing a doctor．

A．choice　 B．appointment　 C．impression　 D．excuse

—What do you think of the meal we have just had?

—It is well worth ______ is changed for it.

A．that B．what C．which D．how many

You have paid $20 ______ (入场费).

I was so familiar with him that I recognized his voice ____ I picked up the phone.
　 A. while 　　 B. after 　　 C. in case　 D. the minute

It was never clear _______ the man hadn’t reported the accident sooner.

A. that　　　　　 B. how　　　　 C. when　　　　 D. why

A man wants to see you, sir. _______ he wait inside?

A. Will　 B. Shall　 C. Would　 D. Ought

— I’m afraid I can’t finish the book this week.

　 — ____.

　 A. Please go ahead　　 B. That’s right　 C. Not at all　　 D. Take your time

_______ she couldn’t understand was ______ fewer and fewer students showed interest in her lessons.

A. What; why　　　　　　　　 B. That; what

C. What; because　　　　　　 D. Why; that

Thomas Alva Edison was awarded more patents on inventions than any other American.When he died in 1931，Americans wondered how they could best show their respect for him.One suggestion was that the nation observe a minute or two of total blackout.All electric power would be shut off in homes，streets，and factories.Perhaps this suggested plan made Americans realize fully what Edison and his inventions mean to them.Electric power was too important to the country.Shutting it off for even a short time would have led to complete confusion.A blackout was out of the question.

　 On the day of Edison’s funeral，many people silently dimmed their lights.In this way they honored the man who had done more than anyone else to put the great force of electricity at his countrymen’s fingertips.

1.This selection says that Thomas Edison　　　　 .

　 A.was the only important American inventor

　 B.received the first American patent

　 C.received more patents than any other American

　 D.was the first American inventor

2.People decided to honor Edison when　　　　 .

　 A.he made the first electric light

　 B.electric power was 100 years

　 C.the country realized electricity’s importance

　 D.he died in 1931

3.The suggested plan was to　　　　 .

　 A.turn off the lights in factories and schools

　 B.observe a few minutes of total silence

　 C.dim all electric lights

　 D.shut off all electricity for a short time

4.Americans fully realized what Edison’s inventions meant when they　　　　 .

　 A.heard of his death

　 B.heard of the plan to honor him

　 C.first used electric power

　 D.tried to carry out the plan

5.The plan was never carried out because　　　　 .

　 A.not everyone wanted to honor Edison

　 B.it was too difficult

　 C.electric power was too important to the country

　 D.it honored only one of Edison’s inventions

Do you think it any good ___ him know that?

A. to make　　 B. to have

C. letting　　 D. permitting