There are about more than five _________
题型:选择题
问题:
There are about more than five ___________ "left-behind" students (留守学生) in China.
A.million
B.millions
C.million of
D.millions of
There are about more than five ___________ "left-behind" students (留守学生) in China.
A.million
B.millions
C.million of
D.millions of