来帮做个英语改错

query不是最恰当，可以改成worry
ours-->our
fears-->fear
We shall overcome.
This is our chance,this is our moment,and this is our time to answer those worry from ours inmost doubts and fear.
We can.

We shall overcome the difficulties before us.
It's the moment for us to answer those questions which we doubt and fear a lot.
We are sure to make it.

The "ours" is too obvious. But the rest are fine, as to me. i think it was said by Obama.