A good student is good at _______ what the teacher says at once when hearing something important in class .

If you ____ your money ____ mine, we will have enough to buy one more set of stamps to ____our collection. 

One of the tourists ______ from the tour group. That was why the tour guide lost his temper.

22．If you keep practising your son in football, he________ to make a famous player．

Tom’s parents died when he was a child, so he was ______ by his relatives.