1 Did the Head Teacher propose that we came to
his school for 15 -20 days in April?
2 Who proposed that we came to his school for 15 -20 days in April?
3 Where did the Head Teacher propose that we came for 15 -20 days in April?
4 When did the Head
Teacher propose that we came to his school for 15 -20 days?
5 How long did the Head Teacher propose that we came to
his school in April for?