The earth is       years old.
#51891
A
four thousands six hundreds
B
four thousand six hundred
C
four thousand and six hundred million
D
four thousand six hundred millions
推荐题目
 On National Day there are more than five __________ people in the zoo.
#51602
A
thousand
B
thousands
C
thousands of
D
thousand of
There are_________ floors in this shopping mall. KFC is on the_________ floor.
#51885
A
five; five
B
five; fifth
C
fifth; fifth
D
fifth; five
There are ________ people in the supermarket. It's so crowded.
#51235
A
hundred
B
hundreds
C
hundred of
D
hundreds of
-Can I spend ______ minutes in bed?-Sorry, you can’t.
#51597
A
ten more
B
more ten
C
other ten
D
ten another
______ volunteers are working for 2014 International Horticulture Exposition in Qingdao.
#50975
A
Thousands of
B
Two thousands
C
Thousand
D
Two thousands of