C. and D. should be your answers. If not, its A. and B.
Hope this was helpful...
Answer: get better and become a pro the you will solve it
Explanation:
I would say:
C) <span>Best of all, some days we go horseback riding.
</span><span><em />Is the most effective way to invert sentence (6) in order to vary sentence patterns.</span><span>
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