________, most teenagers now listen to rock music. However, John likes classical music better.
| A．In a word | B．In general |
| C．In time | D．In total |
—Does he know how to work out the problem?
—Yes，he has ________ a good idea to solve it.
| A．caught up with | B．kept up with | C．come up with | D．put up with |
The trip will take about five months；it will be a long time ________ we meet them again.
| A．after | B．before | C．since | D．when |
This kind of medicine has a bad ________on our brains.
| A．affection | B．affect | C．effect | D．result |
The chance I had been looking forward ________ at last.
| A．to came | B．to come | C．to comes | D．to coming |
The musicians were to play jokes on each other as well as play music，most of ________ was based loosely on the Beatles.
| A．that | B．them | C．which | D．whom |