---How old is your mother? ---She is ______years old. Today is her ______birthday.
#51162
A
fourteen;fortieth
B
fourty; forty
C
forty;fortieth
D
fortieth;forty
推荐题目
Chinese people have been using paper for over______ years.
#51001
A
thousands
B
two thousand
C
thousands of
D
thousand
_________ should not be allowed to go out at night. 
#51907
A
Twelve-years-old
B
Twelve-year-olds
C
Twelveyearold
D
Twelveyearsolds
You can see _______ if you go out at night.
#51866
A
million stars
B
thousand of stars
C
hundreds stars
D
millions of stars
There are more than three      people in the city.
#51395
A
millions
B
million
C
millions of
D
million of