The problem is _____ we can master modern science and technology in a short time.
| A．if | B．that | C．what | D．how |
__________ industry develops quickly, more and more rivers are being polluted.
| A．When |
| B．As |
| C．After |
| D．With |
Most Chinese musical instruments are quite different __________ western ones __________ shape.
| A．with ； from |
| B．with ； in |
| C．from ； with |
| D．from ； in |
His parents are both out of work, so they can't __________ a computer.
| A．afford |
| B．be afforded |
| C．be offered |
| D．afford buying |
The popular band __________ because the members had different opinions on some important matters.
| A．broke down |
| B．split up |
| C．went away |
| D．returned home |
The __________ is very strict with the actors and often shows them what to do by acting himself.
| A．composer |
| B．conductor |
| C．musician |
| D．director |