We all know that dinosaurs lived on the
题型:选择题
问题:
We all know that dinosaurs lived on the Earth more than ______ years ago.
A.sixty million
B.millions of
C.sixty million of
D.million of
We all know that dinosaurs lived on the Earth more than ______ years ago.
A.sixty million
B.millions of
C.sixty million of
D.million of