. Answer
the questions (use the Present Perfect Continuous):


1. What
have you been doing? Why is the room in a mess?


2. What's
wrong? Your son's eyes are red.


3. Oh, is
it a novel? Have I interrupted you?


4. Am I
late? Have I made you wait?

5. Why are
you so sad?

 
6. Have
you done your homework? Shall I help you with the sums?