By the end of the war in 1942, they () many projects in that field.

科目名称：理工英语3

试卷号：11377

题型：词汇与结构(单选题)

题目：By the end of the war in 1942, they () many projects in that field.

选项：1. finished 2. had finished 3. would have finished

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答案：had finished