例句：
1.我现在在干嘛呢？
What am I now doing?
2.问题(电话里)：你在干嘛呢？
Question (on the phone) : What are you doing?
3.昨晚你去他家的.时候，他在干嘛呢？
What was he doing when you went to his house last night?
4.“你在干嘛呢？”年轻的治安官问道。
"What are you doing?" asks young squire.
5.大家说这蚂蚁到底是在干嘛呢？
What is this ant doing?