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Write a question for each situation. Use Present Perfect Continuous.
1. John looks sunburnt. You ask: (you/sit in the sun?).
2. You have just arrived to meet a friend who is waiting for you. You ask: (you/wait/long?).
3. You meet a friend in the street. His face and hands are very dirty. You ask: (what/you/do?).

John looks sunburnt. You ask: Have you been sitting in the sun?

You have just arrived to meet a friend who is waiting for you.

You ask: Have you been waiting long?

You meet a friend in the street. His face and hands are very dirty. You ask: What have you been doing?