Did the traveller think of a plan how to get warm? What did the traveller think of? The traveller thought of a plan how to get warm, didn't he? Did the traveller think of a plan how to get warm or about his work? Who thought of a plan how to get warm?
What did the traveller think of?
The traveller thought of a plan how to get warm, didn't he?
Did the traveller think of a plan how to get warm or about his work?
Who thought of a plan how to get warm?