Do you know the trouble he had ______________ the work?
| A．on finishing | B．to finish | C．having finishing | D．finishing |
．—What happened to the young trees we planted last week?
—The trees ____ well, but I __________ them.
| A．might grow; hadn’t watered | B．needn’t have grown; didn’t water |
| C．would have grown; didn’t water | D．would grow; hadn’t watered |
After five years of preparation, Shanghai is presenting the world _______ many say is the greatest Special Olympics.
| A．when | B．what | C．where | D．which |
At the Copenhagen conference, all the countries were called on to do all they could to control greenhouse gas emissions ______ it was too late.
| A．when | B．after | C．until | D．before |
Catherine, ____ the alarm clock for 6 o’clock, or you would oversleep and be late for the train.
| A．setting | B．sets | C．set | D．to set |
—Do you think he will do me a favor?
—As far as I know, he is the last one to help others. He ____ be prepared to give you a hand, though.
| A．might | B．must | C．can | D．should |