The engineers made two big plans for the dam, ____ was never put in force.
| A．one of them | B．which |
| C．one of which | D．every one of which |
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．that | C． which | D．what |
The crossing was blocked by many trucks and buses, made it impossible for us to go to work on time.
| A．where | B．what | C．whick | D．that |
It is reported that the epidemic half the town’s population.
| A．wiped out | B．blocked out |
| C．found out | D．worked out |
If I his advice earlier,I would not be embarrassed now.
| A．followed | B．had followed |
| C．would follow | D．were to follow |
There will be interval of 20 minutes after second act.
| A．an;a | B．an;the | C．不填；the | D．the;a |