Don’t worry.______ and we will complete the task you assigned to us.
| A．Another hour | B．An hour later | C．After an hour | D．In an hour |
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 |
—Isn't it a surprise that I happened to meet Francis Mafhews at the Christmas party last week?
—If my memory serves me correctly, you ____ each other for exactly two years．
| A．hadn't seen | B．haven't seen | C．didn't see | D．don't see． |