A study shows that walking fast in your old age is a ______ that you will live a long life.
#6091
A
sign
B
mark
C
symbol
D
signal
推荐题目
It _____ to the airport.
#6718
A
takes forty minute’s drive to get
B
takes forty-minute drive to get
C
is forty-minutes’ drive
D
is a forty-minute drive
We will be given a(n)        to ask questions at the end of the lecture.
#5500
A
presentation
B
explanation
C
opportunity
D
possibility