I'm sorry I took your umbrella mistake.
A:for
B:about
C:on
D:by
I am interested in collecting stamps.
A. white B. orange C. pencil D. pen E. green
Hi, I'm Lucy. I have a pencil box. It's ____ I have a ____ It's black. I have an eraser. It's ____ I have a ____ It's red. I have a crayon. It's____
地球是人类的家园.读经纬网图,对地球描述不正确的是( )