It was very late when I got out of the cinema. By the time the _______ ended, it was 1 a. m. I walked to my car which was _______ across the street. When I arrived, I noticed something _______— the doors were unlocked. I took a quick _______ round the car and to my great _______, everything was undamaged, except that my _______ was gone. After a further search, I had to _______ the fact that it was gone, but I considered myself incredibly _______ that nothing valuable was taken.

The next day I got a _______ voice mail from a man. He said he had walked his dog in the morning and came across my ________ briefcase with my name on it. I called him back ________. He promised to ________ it. At first I asked him to send it, but then I ________. Though we were in the same city, I didn’t want to trouble him. I finally decided to go to collect it though it probably wouldn’t be ________ enough to go to a ________ house to pick something up.

I met the man and was greatly ________ to him. Words could not express my ________ of this stranger’s kindness. I think that there’s so much ________ in the world and there are so many people who ________ their inner goodness through acts of kindness. It feels good to give kindness and it also feels nice to ________ others want to give.

Fifteen years ago when I started my scientific journey, I was an undocumented immigrant (移民) from Peru who never dreamed of becoming a scientist. But I had the ______ of having inspiring role models throughout my life.

My first role model is and will always be my ______ . Since our family left Lima to the US to pursue a better ______ , it has been three decades. I can’t ______ her more for her devotion as a single mother while working at a factory over 80 hours a week. She taught me the ______ of education, the importance of pursuing my dreams and that with perseverance, you can ______ it through difficult times.

My interest in science began as a student at Union County College. There I met ______ professor Tracy Felton, who encouraged my ______ interest in evolution (进化). She also ______ me when I told her my immigration status. This small but important act made me think that maybe I. could become. a scientist.

While my college options were ______ as an undocumented immigrant back in 2010, the City University of New York ______ me with open arms, where I met professor Anne F. Simon, who taught me how to be a scientist through designing experiments, analyzing results and ______ . at academic conferences.

My story is purely ______ . I would not have become a scientist if it weren’t for the role models who took the time to ______ in me. I am very ______ to them.

The other day, I had an experience of giving and receiving!

It had come to my ___ that a lady was going into hospital for an extended period of time. The hospital had ___ her with a list of clothing items needed in the rehab (康复治疗) program for her ___. Because she lived on a very limited ___, she didn’t know how she could afford the required ___. I had extra clothes that were her size, so I ___ the freshly washed clothing, added several articles for daily use, and ___ them to her. When I presented the ___ to her, she was completely caught off guard (措手不及). ___ the extra clothes will make her recovery a bit easier and less ____!

On the same day, I had heard about a bolt of fabric (布料) for sale and made ____ to pick it up. When I went into the fabric store, the woman who ____ the store spontaneously (一时冲动地) decided to give me the bolt of fabric ____. Now I was the one who was completely caught off guard! One of her relatives then ____ to drive me to get the fabric, and her husband even carried the ____ roll of fabric out to the car for me!

Not only had I ____ expected to pay for the fabric, but I had also ____ to take a long bus ride to get it and carry it home. I was so ____ to have suddenly received such a(n) ____ gesture from not just the store owner, but also her husband and her relative.

I guess what goes around really does ____!