Read the passage and correct the mistakes, ______．
| A．if not | B．if any | C．if ever | D．if never |
12. Bungee is an adventurous sport, popular with young adults, ______ courage matters more than strength.
| A．where | B．that | C．of which | D．whose |
11. The public has complained that large quantities of waste water ______ into rivers without being cleaned, so large amounts of money ______ to solve the problem.
| A．have poured; is needed | B．has poured; are needed |
| C．have been poured; is needed | D．have been poured; are needed |
10. The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
| A．should | B．must | C．can | D．Will |
9. Many young people in the West are expected to leave ______ could be life's most important decision --- marriage --- almost entirely up to luck.
| A．as | B．what | C．which | D．That |
8. We missed our train, and ___ the next train was delayed, ____ we had to wait for two hours.
| A．on top of that; in that case | B．as a result; so that |
| C．because; therefore | D．what was worse; in which case |