’s knee pain ______ from such activities as running, hikingand horse riding.

There are many differences between the two popular programs —— Happy Camp & Where Are We Going？Dad！The former is filled with happiness,while the _______ is full of love．

My bike is broken．What should I do— You can get it in that bike shop.

With he help of his friends, he has _________ a good business over the years.

do you think of teaching, Bob— I find it andchallenging It is a job youare doing something serious but interesting