Ask for clarification ofc....
In a way i would prefer a question because how can you get the answer without given the question or visa versa. So if it would be question the explanation would be it helps you decides who,when,what,where........
And if it would be answer it would be answer helps you can elaborate to help you know more. hope this helps. i tried my best
2. I had worn blue shoes.
3. The table had been cleaned by Joe.
4. The key had been lost by us.
5. A fight had been started by them.
7. The window had not been closed by me.
8. The paper had not been bought by them.
9. I had not been noticed by her.
10. Had the problem been solved by her?
Yes, me is the correct pronoun to use in the sentence <em>Mark studied all afternoon with Marcus and ______.
</em>No other pronoun can be used in this example, because you need an object pronoun, and other options are subject.<em>
</em>
Should be 3. This is biology not english- and the gametes normally contain half is what I was taught.