【简答题】B When I was looking at my railway timetable, I read with satisfaction that there was an express train (快车) to Westhaven. It went to the station in my hometown and the journey lasted only an hour and ...
【单选题】Can animals be made to work for us? Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings. They point out that at a circus, for exam...
A.
Animals are very skillful at a circus.
B.
They are big and strong.
C.
Some animals are as clever as human beings.
D.
Animals can be trained because they like to get something as a reward.