The reason _____ they held a party was _____ it was Sue’s birthday.
| A．why; because | B．why; that |
| C．that; that | D．that; because |
The reason ______ he gave his teacher for being late is ______ there was a lot of traffic on the road.
| A．why; that | B．that; because | C．which; why | D．that; that |
There is no doubt ______ he said at yesterday’s meeting was true.
| A．what | B．that | C．that what | D．what that |
______ it will do us harm or good remains ______.
| A．If; to be seen | B．Whether; to be seen |
| C．That; seeing | D．Whether; seen |
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 |