[单项选择]Years ago, many of the machines were operated ______ but now they are operated by computers.
A. manually
B. artificially
C. automatically
D. synthetically

[单项选择]The story ______ many years ago.
A. take place
B. took the place
C. took place
D. happen

[单项选择]For many years they were able to produce and sell their goods more cheaply than other nations and this gave them a______ advantage in world trade.
A. considerate
B. considerable
C. convenient
D. conservative

[单项选择](Not) too many years ago, it was an (excited) experience (to travel) 25 or 50 miles (away from) home.
A. Not
B. excited
C. to travel
D. away from

[单项选择]Forty years ago people were indifferent to the health of the ocean because ______.

[单项选择]Thousands of years ago people were forced to leave their homeland because ______.
A. the earth was in an ice age
B. they found their homeland getting colder
C. huge sheets of ice were spreading over the land
D. they had to stay near the animals they hunted for food

[单项选择]A hundred years ago many kids died at an early age.

[单项选择](Not too many) years (ago) my mother jogged in the alley behind our house because she was embarrassed (to see) jogging (in public).
A. Not too many
B. ago
C. to see
D. in public

[单项选择]Hundreds of years ago cloves were used to {{U}}remedy{{/U}} headaches.
A. disrupt
B. diagnose
C. evaporate
D. cure

[单项选择]

Not too many decades ago it seemed "obvious" both to the general public and to sociologists that modern society has changed people’s natural relations, loosened their responsibilities to kin (亲戚) and neighbors, and substituted in their place superficial relationships with passing acquaintances. However, in recent years a growing body of research has revealed that the "obvious" is not true. It seems that if you are a city resident, you typically know a smaller proportion of your neighbors than you do if you are a resident of a smaller community. But, for the most part, this fact has few significant consequences. It does not necessarily follow that if you know few of your neighbors you will know no one else.
Even in very large cities, people maintain close social ties within small, private social worlds. Indeed, the number and quality of meaningful relationships do not differ between more and less urban people. Small-town residents are more involve
A. did not have the same interests as their neighbors
B. could not develop long-standing relationships
C. tended to be associated with bad behavior
D. usually had more friends