In the good care of the nurse, the boy is       recovering from his heart operation.

Though having failed several times, Tim, who didn’t give up his dream, _____ made his dream come true.

Though many extra trains and buses are used to carry passengers, traffic tools are still ________ needed during the Spring Festival.

I got to know him five years ago. We have been in close touch with each other ______.

A football suddenly flew over our head and it ______ missed hitting a child playing nearby.