Why is he sitting? (Doing homework)
Because he is doing homework.
Why are they wearing swimsuits? (It / hot)
Because it is hot.
Why is he tired? (Working)
Because he is working.
Why is it happy? (Playing)
Because it is playing.
Why is she making lemonade? (Thirsty)
Because she is thirsty.
Why is he on the bed? (Reading)
Because he is reading.
Why are you eating? (Hungry)
Because I'm hungry.
Why are you drinking? (Thirsty)
Because I'm thirsty.
Why are you sleeping? (Tired)
Because I'm tired.
Why are they dancing? (Happy)
Because they are happy.
Why are they jumping? (Playing)
Because they are playing.
Why is she running? (Scared)
Because she is scared.
Why is it on the sofa? (Watching TV)
Because it is watching TV.
Why are they making coffee? (Thirsty)
Because they are thirsty.
Why are you cleaning the house? (It / dirty)
Because it is dirty.
Why are you crying? (Sad)
Because I'm sad.
Why is she wearing gloves? (It / cold)
Because it is cold.
Why are they making pizza? (Hungry)
Because they are hungry.
Why are you laughing? (Happy)
Because I'm happy.
Why are you making a cake? (Hungry)
Because I'm hungry.