the second bit is more formal, " You're six years old, aren't you?"
because, the other sounds very demanding or imperative, like as if you have to answer the question. so, it has to be the second line.
Answer:
A
Explanation:
It represents the turning point in which Britain finally decided to fight against the Nazi's
Answer: I think it is C but I could be wrong (im sorry if it is wrong I tried).
Explanation:
given a sentence and example.
Example: Please do not hesitate to ask information about this matter.