题目内容：
回答题：A) He has returned from a conference.
B) He'll have a conference next Friday.
C) He's waiting for the man in his office.
D) He won't be available until next Friday.
参考答案：
答案解析：
单选题：回答题：A) He has returned from a conference.B) He'll have a con
- 题目分类：英语三级A级
- 题目类型：单选题
- 查看权限：VIP
A) He has returned from a conference.
B) He'll have a conference next Friday.
C) He's waiting for the man in his office.
D) He won't be available until next Friday.