The scientist was rewarded by the government for such a great，contribution to the country．
| A．make | B．making | C．being made | D．having made |
Have you ever dreamed of playing in front of thousands of people at a concert, _______everyone is clapping and appreciating your music?
| A．in which | B．for which | C．from which | D．at which |
Sometimes they may play to passers-by in the street or subway so that they can earn some______ money for themselves or to pay for their instruments.
| A．certain | B．extra | C．various | D．unusual |