单项选择题
A．the opinions of famous people B．a vivid word picture C．an example D．a firsthand story
A．Food for astronauts must be made in a special way. B．All meat on earth comes in bite-sized pieces. C．Astronauts will only eat cakes made from crambs. D．Astronauts have to go hungry in a spaceship.
A. Excuse me, sir B. Could I speak to Bruce, please C. I’m not sure if he would give me one or two. D. My telephone number has changed. E. A little better. F. Has he got your telephone number G. He’s not in at the moment. H. You’re welcome.