It was not until she came to see us ____ her mother was ill in bed.
| A．when we knew | B．that did we knew | C．that we knew | D．that did we know |
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 |
The band about 1970, but happily they reunited in the mid1980s.
| A．broke up | B．broke down | C．broke out | D．broke in |