Nicole:If you asked me to chodse love or money, I would choose love
Correct: If I were to choose between love and money, I would choose love.

Nicole:  I don't know what is love ,exactly but I think love is more important.
Correct:  I don't know what exactly love is,  but I think love is more important than money.

Nicole: It is really hard question.
Correct: It is really a hard question.
Explanation: The indefinite article "a" refers to a particular or certain one of a class or group thing: a man; a chemical; a house.

Nicole: We can earn money in any time we want, but we can love truly only once in our life. 
Correct: We can earn money anytime we want, but we can love truly only once in our lives. 
Explanation: The plural of life is lives.

Nicole: So I think love is more important than money.
Correct: Therefore,  I think love is more important than money.
Explanation: You could also use therefore. It  means as a result/because of that.

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Hello, Nicole! Thank you very much for submitting your homework. I really appreciate it a lot. You've been busy these past few days, nevertheless,
you still give time for your homework. Great job! Have a good sleep, Nicole! See you on Thursday!^^

-Teacher Isabel