The passage is particularly intended for______
A. school students.
B. parents.
C. social workers.
D. educators.
It is imperative that all the parties to the dispute ______ calm and ______ restraint.
A. keeps... exercises
B. shall keep... exercise
C. keep... exercise
D. have to keep... exercise
A．thereinB．thereofC．therebyD．thereon
A. therein
B. thereof
C. thereby
D. thereon
In the authors opinion, all of the following may cause city people to be unhappy EXCEPT______.
A. being noisy, dirty and impersonal
B. lack of communication
C. housing conditions
D. a sense of isolation
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