Studies or sister? Your professor has offered you the opportunity to help him with important research this weekend. However, you have already made plans to travel to your hometown this weekend to attend your sister's birthday party. What will you do? I will choose to help my professor instead of visiting my sister. Because for me, researches are more critical, especially, since this kind of opportunity is relatively rare, and thus very precious, by helping my professor in his research, I can have a thorough knowledge about how to implement research, which will benefit me for future studies. At the same time, I will apologize to my sister, sincerely explain to her the reasons, and send her a well-prepared gift. After all, I can always visit my sister when I am free, however, I do not often have the chance to assist professors in important research. That’s why I will spend the weekend on research rather than a birthday party.