Помогите пожалуйста!!!

Fill in: why, where, who, whose, which or when.
Dear Sally and Bob,
We’re having a wonderful time here in Spain. 1)______ we arrived it was very hot but now it’s cooler. The hotel 2)_______ we are staying is lovely, and the staff 3)_______ work here are very helpful. The beach, 4)_______ is right in front of the hotel, is beautiful and the water is so warm! We sunbather every day so if we have a good tan, you’ll know the reason 5)_______ ! We’ve met a nice man 6)_______ father owns a yacht and tomorrow he’s taking us sailing! That’s all our news. See you soon.
Love,
John and Mary