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
Two weeks is not enough for me to finish the work . I need week .
#51146
A
the other
B
a third
C
the third
D
other
We are going to have _________off next month, so we will go on a trip.
#51688
A
a two weeks’
B
two week
C
a two-week
D
two weeks
Some scientists think that it may take ______years to make robots look like people, and do the same things as us.
#51743
A
hundreds of
B
two hundreds of
C
two hundreds
D
two hundred of
The newly built school canteen(餐厅) is big enough to hold two ________ students at lunch time.
#51567
A
thousand
B
thousands
C
thousand of
D
thousands of