--- Mum, I’m going to visit my aunt. What about a week? --- A week is too long. Try to be back in a ______ of days. 
#6838
A
number
B
dozen
C
few
D
couple
推荐题目
Honesty is the most important______ a man can have.
#6857
A
habit
B
manners
C
quality
D
effect
There are three ____ doing research work in the company.
#7341
A
women scientist
B
woman scientist
C
woman scientists
D
women scientists