① he has been working for five hours for five hours用它提问、② my brother joined the league three years ago three years ago用它提问③ l ‘ d like to start a club 变为一般疑问句.
问题描述：
① he has been working for five hours for five hours用它提问、
② my brother joined the league three years ago three years ago用它提问
③ l ‘ d like to start a club 变为一般疑问句.
答
第二条为正解，第二句加问号
答
How long has he been working?
When did your brother joined the league?
What are you going to do?
答
how long has he been working
when did your brother joined the league
would you like to start a club