Why did the professor study the Brazilian students' behavior?
A. He felt puzzled at the students' being late.
B. He felt angry at the students' rudeness.
C. He wanted to make the students come on time later.
D. He wanted to collect data for one of his studies.
第1题：
He did not regret saying what he did but felt that he it differently.
A． could express
B． would express
C． could have expressed
D． must have expressed
第2题：
A. He wanted to meet an old friend.
B. He wanted to ask for compensation.
C. He wanted to talk about a new contract.
第3题：
What did the students find out about McKay?
A. He trained pilots for some time.
B. He lived longer than other pilots.
C. He died in the Second World War.
D. He was downed by the pilot Boelcke.
第4题：
He did not regret saying what he did but felt that he it differently.
A. could express B. would express
C. could have expressed D. must have expressed
第5题：
Why not ______ to Professor Chen for advice? He is an expert in this field.
A、go
B、to go
C、you go
D、your going
第6题：
A、study didn’t/studies
B、didn’t study/study
C、did not study/studies
D、didn’t studied/studies
第7题：
A. He wanted to buy a set of equipment.
B. He planned to sign an agreement.
C.He’d like to talk about the trademark transfer.
第8题：
Why did David decide to leave school and start working?
A. He received lots of job offers.B. He was eager to help his mother.
C. He lost interest in school studies. D. He wanted to earn his own living.
第9题：
Why did the author shout at the telephone?
A． He was mad at the telephone
B． He was angry with his agent
C． He was anxious about his wife
D． He was impatient with the secretary
第10题：
23． Why did I feel worried suddenly?
A． I felt the bad tooth was still there．
B． There was cotton-wool in my mouth．
C． There was a hole in my tooth．