—Why weren’t you at the meeting?
—I ________ for a long-distance call from my aunt in America．
A．waited B．was waiting
C．had been waiting D．had waited
At the party, John made up a joke, people burst out laughing．
A．on which B．by which C．at which D．from which
If it had rained even a drop, things would be much better now and the crops in the fields ．
A．wouldn’t die B．didn’t die
C．hadn’t died D．wouldn’t have died
Our government has taken some measures to overcome the lack of electricity, but it may take some time _____ we have enough power．
A．since B． after C．unless D．before
She has made great progress in her studies but she said what she had achieved was________little compared to the teacher’s expectation．
A．so far B．too far C．far from D．far too
Peter’s jacket looked just the same as Jack’s，but it cost________his．
A．as much twice as B．twice as much as
C．much as twice as D．as twice much as
