The earth is the planet _______ provides us with everything we need,fresh air,clean water and so on.It's our duty to protect it.( )
A. |
who |
B. |
that |
C. |
where |
The earth is the planet _______ provides us with everything we need,fresh air,clean water and so on.It's our duty to protect it.( )
A. |
who |
B. |
that |
C. |
where |
试题篮
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