Natural disasters are happening more frequently than before; the whole world should work together to respond.
| A．moreover | B．effectively | C．meanwhile | D．consequently |
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． |
That the truth came out panicked him. But he didn’t want to ________ his fears and insecurity to anyone.
| A．link | B．associate | C．expose | D．deliver |