Answer: cliche
This part is just written because I need an extra 20 characters to submit this answer.
Answer:
Textual Evidence man.... its needed
Answer:
It's passive
Explanation:
Because it's saying "Yesterday" so passive
Answer:
No comma needed but recommend adding a period after safer.
Explanation:
After teens get more driving experience, having friends in the car will become safer.
Answer:
caused; past tense
Explanation:
I am assuming you are asking for the tense the word "cause" should be in. Since recent implies that the flood has already occurred, in the recent past, "cause" should be in the past tense.