题目：By the time you arrive, they _____ for an hour.
2024-11-13
By the time you arrive, they _____ for an hour.
A. will have waited
B. have waited
C. waited
D. are waiting
正确答案：A
试题解析：暂无
By the time you arrive, they _____ for an hour.
A. will have waited
B. have waited
C. waited
D. are waiting
正确答案：A
试题解析：暂无
