Research universities have to keep up with the latest computer and scientific hardware __________ price.
| A．on account of | B．in addition to | C．regardless of | D．not to mention |
He is the first person you can think of ______, for he is always willing to ______ is in trouble.
| A．relying on; figure out who | B．relying on; help out whomever |
| C．to rely on; help out whoever | D．to rely on; make out no matter who |
Every means ______ prevent the water from ______.
| A．are used to; polluting | B．is used to; polluting |
| C．is used to; polluted | D．is used to; being polluted |
Henry was _____ struggling at sea by a British ship, _____ he was able to survive the accident.
| A．spotted; and thus | B．discovered; thus | C．founded; so | D．seen; thus |
The girl ______ on the ground ______ to me that she had ______ the purse on the desk.
| A．lay; lying; lied | B．lied; lied; lied | C．laid; laid; laid | D．lying; lied; laid |
How did it come about that you failed to ______ in time for the meeting yesterday?
| A．turn down | B．turn over | C．turn off | D．turn up |