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【单选题】COne day when some government officials were rebuilding a barn（谷仓），they found a mouse hole in a corner and used smoke to force the mice inside the hole to come out.A while later they indeed saw mice r...
A.
one was biting the other
B.
the mouth of the hole was too small
C.
they were not afraid of smoke
D.
one was trying to help the blind one
【单选题】In the early days of the old West in North America, life was difficult. People lived on farms far away from other families. And there were some big problems. For example, how did one family make a hou...
A.
To do more things.
B.
To turn big work into small work.
C.
To give people a chance to get together.
【单选题】In the early days of the old West in North America, life was difficult. People lived on farms far away from other families. And there were some big problems. For example, how did one family make a hou...
A.
They helped their parents.
B.
They stayed at their own houses.
C.
They played together.