We are having a class get-together. It’s been twenty years we graduated from high school.
A．before B．since C．after D．when
—I have finished the homework.
— . How about going out for a walk?
A．So have I B．So I have C．So I do D．So do I
—You seemed not to be interested in the story yesterday.
—Yes. I it in a magazine before.
A．read B．was reading C．have read D．had read
We should go to school by bus or underground rather than by car global warming.
A．reducing B．to reduce C．reduced D．having reduced
—Now, where is my key?
— ! They are waiting for us at the school gate.
A．Take it easy B．Come on
C．Take your time D．Don’t worry
The teaching building in the big earthquake was our chemistry lab.
A．being destroyed B．destroying
C．to be destroyed D．destroyed
