The answer is D.
"Keep", "factor", and "calculate" are all verbs in the list of things the new system allows teachers to do. The other sentences are inconsistent with their list of verbs/adjectives/nouns. Thus, option D is the only one that is grammatically correct.
I am not too good at explaining, so let me know if you are still confused.
Hope this helps! :)
Explanation:
The plot line is about a couple. On the eve of Christmas, the wife discovers she had little money to get her husband a gift. She visited a hair dressers shop where she sold her long hair for 20 dollars. With this money, she gets her husband a watch chain. Later in the evening she tells her husband she sold her hair to afford the chain. Her gift from her husband is a set of ornamental comb. He sold the watch to get her the comb. Bother their actions showed how much they loved each other.
Answer:
Could you show the sentence, please?? I'll help once you do.
Explanation:
The correct answer is B. she litters
