His sister left home in 1998, and _______since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
Books are the important records we keep____ man's thoughts, ideas and feelings.
| A．up | B．of | C．for | D．on |
Take a taxi , _____ you'll miss your train .
| A．and | B．if | C．otherwise | D．or |
Sometimes it was a bit boring to work there because there wasn't always ______ much to do.
| A．such | B．that | C．more | D．very |
When is the best time to ____ my employer about an increase in salary?
| A．appeal | B．appreciate | C．applaud | D．approach |
The book was received so eagerly that it _____ on the first day.
| A．sold up | B．was sold up | C．was sold out | D．sold out |