Complete the given passage.

Your heart …………………. (pumps / is pumping / pumped) blood to the different parts of your body. When it ……………………. (work / works / is working) like it’s supposed to, it …………………… (keeps / kept / has kept) you alive and well. But when the heart ………………….. (failed / fails / is failing), people get very sick or even die. Now, scientists ……………………. (have found / are finding / find) a way to turn dead rat hearts into living ones. It’s a medical miracle and the technique may eventually …………………….. (allow / allows / allowed) doctors to make new hearts from patients’ own cells. This new heart can then be …………………….. (transplanting / transplanted / transplant) to the patient’s body without the fear of rejection.

Answers

Your heart pumps blood to the different parts of your body. When it works like it’s supposed to, it keeps you alive and well. But when the heart fails, people get very sick or even die. Now, scientists have found a way to turn dead rat hearts into living ones. It’s a medical miracle and the technique may eventually allow doctors to make new hearts from patients’ own cells. This new heart can then be transplanted to the patient’s body without the fear of rejection.