Answer:
1. (depends on info)
2. It is more than six months since Peter last had his hair cut.
3. The last time Rachel wore that dress was at her sister's wedding.
4. When did you last pay a visit to your grandparents?
5. They advise that you carry a passport with you at all times.
"<span>How many times greater is the acidity of hydrochloric acid than vinegar?" is the best option from the list, since this is what the chapter is primarily dealing with. </span>
A. It gives readers a sense of grasping for something that can't be caught.
3). life's unpredictability and urge people to enjoy their youth
