More and more people find ______ necessary to protect our earth.

 More and more people find ______ necessary to protect our earth.

#55750

that

this

its

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_______ are my brother and sister．

#55909

This

These

That

―Who is making so much noise in the garden? ―___________ the children.

#55867

It is

They are

That is

There are

He gave me two answers_________the question,but________of them is right.

#55825

of, neither

to, both

of ,none

to, neither

____seems very hard to reach the top of the mountains.

#55842

That

This

I think          important for us to learn a foreign language well.

#55896

this

that

them

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