Answer:
It means a good friend u can called buddy to a girl or a boy. It is a informal and friendly address to stranger as well.
B. Because if a speaker spoke quickly listeners might have a hard time listening to what they are saying.
Emergency should be the answer to your question. Drought does not fit the adjective. Because is a adjunction . Quickly is most likely consider a action, so emergency should be your answer! Hope that helps.
The name of the common error in this sentence is C) dangling modifier.
We don't know what the dangling modifier (having risen because of the rains) actually refers to - does it refer to the hikers or the river?
Although using logic you can infer that it refers to the river, but still, the order of the words makes it an incorrect sentence.
