根据上下文的意思在下面对话的空格中填上适当的词

问题描述:

根据上下文的意思在下面对话的空格中填上适当的词
Hello.
hello.What are you_______?
I'm watching TV.
Is your sister_______________________________too?
No,my sister isn't watching TV.She is playing.
________your father doing?
My father is working.
Can i speak to him ,please?
Sure.Hold on,please.
Thank you.

doing
is watchingTV
what is