The carbon content of steel largely determines its usefulness for _______ applications.
| A．typical | B．tough | C．fantastic | D．specific |
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 |
-----Where ____ you put the ruler? I can't see it anywhere.
-----I put it right here. But now it is ____.
| A．have, gone | B．did, missed | C．had ,going | D．will, missing |