It might help you better if you posted what you need proofread.
Answer:
Try free writing it into different ideas.
Explanation:
For example if someone is angry you could say they had gotten a parking ticket. What may have lead up to that situation that caused them to get one.
Hope this helps :)
F because both scientist are unsure so they would have to reevaluate their decision
Answer:
D
Explanation:
prepositions can come in many ways, but somtimes not most ways is the most simple ways. you have first a pronoun and then a noun and then the preposition is the one after the two
is this case, the examples would be
hand th cash over
the pronoun is "the"
and the nouns is "cash"
finally the preposition is "over"