问题
选择题
– How long have you been collecting stamps?
– I was ten years old.
A. Since B. When C. Because
答案
答案：A
题目分析：A. Since自从，B. When当，C. Because 因为，句意：你收集邮票有多长时间了？自从我十岁开始。故选A。
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– How long have you been collecting stamps?
– I was ten years old.
A. Since B. When C. Because
答案：A
题目分析：A. Since自从，B. When当，C. Because 因为，句意：你收集邮票有多长时间了？自从我十岁开始。故选A。