At first, locomotives could not popularize themselves because they ______.
A. could not bring profits or save much labor
B. attract people
C. only caught some people's interest
D. were not welcome
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______ was an Irish dramatist and writer who became an active member of the Fabian Society and Won Nobel Prize for Literature in 1925.
A. Bernard Shaw
B. Oscar Wilde
C. James Joyce
D. Henrik Ibsen
In the next decade, Robots will become practical because of all but one exception that ______.
A. they may cook hamburgers in the restaurants
B. they can perform wonderous skill as shown in science fiction film
C. they may deliver meal trays in hospitals
D. they may do some moppings in the shopping center
The best way to save ozone is ______.
A. that CFC manufacture is completely forbidden
B. that the production of CFC is reduced
C. to find substitutes for CFCs
D. to reduce the danger of CFCs
The multi-tube boiler system made the Rocket, Robert's locomotive,______.
A. powerful
B. achieve a speed of 30 miles an hour
C. acquire 25 little tubes
D. good for hauling trains
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