题目：By the time he was twelve, he _____ several languages.
2024-11-13
By the time he was twelve, he _____ several languages.
A. learned
B. has learned
C. had learned
D. will learn
正确答案：C
试题解析：暂无
By the time he was twelve, he _____ several languages.
A. learned
B. has learned
C. had learned
D. will learn
正确答案：C
试题解析：暂无
