问题
选择题
They considered _____ a computer, which was considered _____ a great help in their work. [ ]
A. to buy; to be
B. buying; being
C. to buy; being
D. buying; to be
答案
答案：D
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They considered _____ a computer, which was considered _____ a great help in their work. [ ]
A. to buy; to be
B. buying; being
C. to buy; being
D. buying; to be
答案：D