People who get less than six hours of sleep per night have an increased _____ of dying early.
#6443
A
custom
B
practice
C
disadvantage
D
risk
推荐题目
He dropped the ______ and broke it.
#5441
A
cup of coffee
B
coffee’s cup
C
cup for coffee
D
coffee cup
“Why couldn’t they meet us at five o’clock?” “Because they were delayed by ________.”
#7317
A
heavy traffic 
B
heavy traffics
C
crowded traffic
D
crowded traffics