The past two years ________ a sharp rise in oil price, which adds to the burden of auto transportation industry.
| A．witnessed | B．has witnessed | C．is witnessing | D．witnesses |
He must have been ill, or he ________ to the lecture then.
| A．would come | B．would have come |
| C．came | D．had come |
Fitness is important in sport, but of at least ________ importance are skills.
| A．fair | B．reasonable |
| C．equal | D．proper |
Wallace Chung can sing, dance and act as well. This is ________ he has appealed to his fans for nearly 20 years.
| A．why | B．because | C．that | D．how |
Prince William will be fiercely protective of his new son to make sure he has a chance of a “normal” family life, ________happens in Royal circles.
| A．however | B．whatever |
| C．wherever | D．whichever |
It's a custom in China to have some tea or other drinks before the meal ________.
| A．serves | B．served |
| C．was served | D．is served |