The American girl has a good          of Chinese and can express herself freely in the language.
#6397
A
item
B
series
C
command
D
usage
推荐题目
I didn’t mean to break your vase—it was just ______. 
#5437
A
an accident
B
an advantage
C
an agreement
D
an experience
Do you have any ________on forbidding drunk driving ?
#6153
A
account
B
summary
C
belief
D
comment