Don’t dawdle away your time,or the young head will soon turn it will be in vain for you to moan and mourn for this.以下是小编为大家搜索整理的2017下半年四级公共英语考试单选题训练，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业考试网!
1. He( )his previous best performance in the 1000 meters.
A. improves
B. improves on
C. betters
D. proves
2. I( )to interrupt a man when he’s busy working.
A. envy
B. hate
C. admire
D. improve
3. he was astonished( )what he found.
A. at
B. to
C. for
D. on
3. They made no effort to hide their amusement( )I produced a packet of sweets from my pocket.
A. whatever
B. wherever
C. whoever
D. whenever
4. I had hoped to get $1000 for my old car but had to( )a lot less.
A. settle down
B. settle in
C. settle for
D. settle on
答案 1. B2. B3. A4. D5. C
