I don’t like physics ______ it’s too difficult for me.

Miss Evans taught physics in a London school. Last month she was explaining to her class about sound, and she decided to test them to see how successful she had been in her work. She said to them, Now, I have a sister in Washington. If I was calling her on the telephone, and at the same time you were 20 meters away and listened to me from the other side of the street, who could hear what I said earlier, my sister or you? And why?
The cleverest boy at once answered, “Your sister, Miss Evans, because electricity (电)travels faster than sound waves(波).” That’s very good, Miss Evans answered, but then one of the girls put up her hand, and Miss Evans said, Yes, Betty?
“I don’t think so. Betty said, Your sister would hear you earlier because when it’s eleven o’clock here, it’s only six o’clock in Washington.”
(   )6. Miss Evans was teaching her class __________.
A. about sound                       B. to hear some strange sound
C. about electricity                    D. how to say time
(   )7. She wanted to make her students know__________.
A. whether she could hear her sister in Washington
B. whether her students could hear her from 20 meters away
C. which was faster, London or Washington
D. electricity travels faster than sound waves
(   )8. The cleverest boy thought that___________.
A. sound waves travel faster than electricity
B. they would hear her sister in Washington first
C. Miss Evans’s question wasn’t right
D. Miss Evans’s sister would hear her earlier
(   ) 9. Miss Evans________.
A. thought Betty’s answer was much better
B. thought the cleverest boy’s answer wasn’t so good
C. was satisfied with what the girl had said
D. was satisfied with(对...感到满意) what the cleverest boy had said
(   )10. Betty thought the cleverest boy was wrong, because_____________.
A. clocks in Washington showed a different time from those in London
B. electricity was slower than sound waves
C. they were only 20 meters away from the telephone
D. electricity travels as fast as sound waves

    — Who teaches       physics this term?— Miss Yang.

  Complete the following sentences as required
【小题1】The guests visited the Great British Museum last week.（改为一般疑问句）
______ the guests ______ the Great British Museum last week?
【小题2】The Chinese get a family reunion (团聚) during the Spring Festival.（对划线部分提问）
______ ______ the Chinese get a family reunion?
【小题3】We had an amusing experience this afternoon.（改为感叹句）
______ ______ amusing experience we had this afternoon!
【小题4】The librarian took the magazines out of the reading room.（改为被动语态）
The magazines ______ ______ out of the reading room by the librarian.
【小题5】We were surprised to find that the missing dog came back home alone.（保持句意基本不变）
______ our ______ , the missing dog came back home alone.
【小题6】Please tell me. Where is the physics lab?（改为宾语从句）
Please tell me ______ the physics lab______ .
【小题7】many   dance   people   every morning   happily   in the park   .  (连词成句)