题目内容
It is ____ and encouraging to observe the development of this immense process.
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It is reported that the two armies ____ near the borderline again before dawn.
I am very much ____ to hear that Mr. Smith is so seriously ill.
Louis Herman, at the University of Hawaii, has ____ a series of new experiments to determine the intelligence in some animals.
There is supposed to be a ____ which serves to give full play to workers' initiative.
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