I have no one ____ me, for I can deal with it all by myself.
| A．to help | B．to have helped | C．help | D．helped |
. — I reminded you not to forget the appointment with the house agent.
— ____, but I was caught in a traffic jam.
| A．So you did | B．So I did | C．So did you | D．So did I |
Failure is never pleasurable, but it can make a positive contribution to your life ____ you learn to use it.
| A．since | B．once | C．until | D．unless |
We all know that, ____, the situation will get worse.
| A．not if dealt carefully with | B．if not carefully dealt with |
| C．if dealt not carefully with | D．not if carefully dealt with |
The most important thing for Lucy is to find a proper job,____ in which she can bring her ability and potential into full play.
| A．that | B．this | C．one | D．the one |
Mr. Obama noted that the ____ Christmas Day bombing was not the first time the group ____to attack America and its friends.
| A．advised; tried | B．attended; trying |
| C．attempted; had tried | D．wanted; has tried |