问题补充:
Don’t worry, sir. I’m sure I can run to catch up with them.
A. fast enough
B. enough fast
C. slowly enough
D. enough slowly
答案:
(答案→)A. fast enough
B. enough fast
C. slowly enough
D. enough slowly
解析:enough修饰形容词或副词,位于该词之后,故将BD排除,又根据前后文意思,可知答案为A