My eldest son, ___ work takes him all over the world, is in New York at the moment.
A. that
B. whose
C. his
D. who

I was watching the clock all through the meeting, as I had a train ______.
A. catching
B. caught
C. to catch
D. to be caught

We offer an excellent education to our students. ________, we expect students to word hard.
A. On average
B. At best
C. in return
D. After all

一根轻质弹性绳的两端分别固定在水平天花板上相距80cm的两点上，弹性绳的原长也为80cm。将一钩码挂在弹性绳的中点，平衡时弹性绳的总长度为100cm;再将弹性绳的两端缓慢移至天花板上的同一点，则弹性绳的总长度变为（弹性绳的伸长始终处于弹性限度内)
A.86cm
B.92cm
C.98cm
D.104cm

I ________down to London when I suddenly found that I was on the wrong road.
A. was driving
B. have driven
C. would drive
D. drove

In 1973, I was teaching elementary school.Each day, 27 kids 41 “The Thinking Laboratory.”That was the 42 students voted for after deciding that “Room 104” was too 43 .

Freddy was an average 44 ,but not an average person. He had the rare balance of fun and compassion（同情).He would 45 the loudest over fun and be the saddest over anyone’s 46 .

Before the school year 47 ,I gave the kids a special 48 , T-shirts with the words “Verbs Are Your 49 ” on them. I had advised the kids that while verbs（动词)may seem dull ,most of the 50 things they do throughout their lives will be verbs.

Through the years, I’d run into former students who would provide 51 on old classmates. I learned that Freddy did several jobs after his 52 from high school and remained the same 53 person I met forty years before .Once, while working overnight at a store, he let a homeless man 54 in his truck . Another time , he 55 a friend money to buy a house .

Just last year, I was 56 a workshop when someone knocked at the classroom door. A woman 57 the interruption and handed me an envelope. I stopped teaching and 58 it up. Inside were the “Verbs” shirt and a 59 from Freddy’s mother. “Freddy passed away on Thanksgiving. He wanted you to have this.”

I told the story to the class. As sad as it was, I couldn’t help smiling . Although Freddy was taken from us,we all 60 something from Freddy.

48.A.lesson B.gift C.report D.message