单项选择题

When we have difficulty ______ desired objects or reaching desired goals we experience negative emotions such as grief and anger.

A．at obtaining
B．in obtaining
C．on obtaining
D．with obtaining
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单项选择题
What will happen to Jim if his parents（）

A. break out   
B. break away 
C. break up   
D. break off
单项选择题
______ the essay a second time, and you will probably have quite different interpretations of the arguments discussed in it.
A．If you were read
B．As you read
C．Read
D．Reading
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