If someone has an accident and can no longer walk, scientists might be able to use stem cells to ___ the damaged cells and allow that person to walk again.
—I'm going to visit Tom tomorrow. Will you go with me? —________ But I'm going to eat out tomorrow night with John.
—Daddy, how do you like it if I buy a wallet for my mom's birthday? —________.
—Would you mind me opening the window, sir? —________. I am feeling a bit chilly.
—My neighbor is always playing loud music late at night. —________. You really should talk to him about it.
—Have you been wasting time chatting online recently? —________. I've been studying hard and I need a break.