Given information is not enough to answer your question appropriately. Let me start explaining with the cases that we can extract from given information:
Case 1: Stacy was driving the car - in this case, Stacy was in driver seat.
Case 2: Someone else was driving the car - in this case, Stacy was in passenger seat.
<h2><u>an effective comparative writing always contains following elements :</u></h2>
- Clarity : To make a sentence effective , author's vue should be seen in clarity . or else there is no meaning of that sentence.
- Correctness : the statement should be correct enough to make readers agree with points to make it effective .
- Well organised plain for body of sentence : it is very important for prepare the sentence keeping all the valuable points layout in brain .
- Arguments and similarities : While the author is comparing things , it should allways contain both arguments and similarities , to make the reader believe and agree with one's point .
Answer:
Once, After
Explanation:
Both words will work here, signifying an action to be done after the letter is received by the speaker.
Hope this helps!