Tom watches TV four          five             a  week..
#51418
A
and , times
B
and , time
C
or. times
D
or, time.
推荐题目
This is our __________ Chinese lesson.
#51816
A
one
B
two
C
first
D
the first
About _____ of the world population is Chinese. 
#51889
A
one third
B
one fourth
C
one fifth
D
one sixth
Li ping’s brother is an            boy.
#51702
A
eighteen-years-old
B
eighteen years old
C
eighteen-year-old
D
eighteen year old