— How old is your son?   — Five.—We will have a special party for his            birthday .
#51039
A
five
B
fifth
C
fifteen
D
fifteenth
推荐题目
Our planet is about ______ years old.
#51853
A
35,000
B
4600
C
4600 million
D
500 million
Elvis Presley has sold more than one______ records all his life.
#51613
A
billion
B
billion of
C
billions of
D
billions
Computers of today can work         than the ones in the 1970s.
#51505
A
hundred of times faster
B
a hundred time faster
C
hundred times faster
D
hundreds of times faster
--It’s said that __________ people died from car accidents in 2011. --How terrible! 
#51646
A
10 thousands
B
thousand of
C
10 thousands of
D
thousands of