题目内容
Mr. Smith is considering ______ a computer, which is considered ______ a great help in our work and study.
A. to buy; to be B. buying; to be C. to buy; being D. buying; being
B
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题目内容
Mr. Smith is considering ______ a computer, which is considered ______ a great help in our work and study.
A. to buy; to be B. buying; to be C. to buy; being D. buying; being