More than two _______years ago, people knew little about the universe.
#51657
A
thousands
B
thousand
C
thousands of
D
thousand of
推荐题目
Football is so exciting that people in the world play it.
#51477
A
million of
B
two millions of
C
millions of
D
two million
Where is Class________ ?It’s on the ______ floor.
#51496
A
Six: third
B
Sixth; third
C
Six; three
D
Sixth; three
There are about _________ teachers and students in their school.
#51545
A
three thousands
B
three thousand
C
thousand of
D
three thousand of
No.6. Middle School is very beautiful. There are seven teachers and students in it.
#51771
A
thousand of
B
thousands of
C
thousand
D
thousands
About _____ of the world population is Chinese.
#51889
A
one third
B
one fourth
C
one fifth
D
one sixth