Out of all the pronouns, "whom" makes the most sense grammatically. This allows us to narrow it down to A or D.
In order for it to be the object of a preposition, there would have to be a preposition in front of it. "For," however is <em>not</em> a preposition. In fact, there isn't a preposition in the whole question.
This leaves us with option D, which is the correct answer.
You can better tell it's a direct object if you flip the sentence around a bit.
Your sister is waiting <em>for whom</em>?
"Whom" is essentially receiving the action. "Whom" is what your sister is waiting for.
Answer: D. whom; direct object.
Answer:
"let fly a charge of Number 6 shot into the darkness"
Explanation:
A Number 6 is a type of shotgun, and shooting randomly into the darkness, without knowing what you're aiming at is pretty reckless if I do say so myself.
1st person is where students use their spoken voice. EG: I, me, mine. A personal narrative
3rd person is where a student uses their written voice. EG: him, her, he, she.
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".
It is B. it is B because usally after you use an and you sometimes need to use a comma