---Are Mr. and Mrs. Wang living alone in the house? ---Yes, they have three sons, but ______ of them live in their own houses.

--- What shall we do this weekend?--- You can go swimming, hiking, or ______ else you enjoy doing.

 —Whose book is this ?   — It must belong         .

_ Excuse me, _______is the nearest bookshop? _Go down the street and turn left at the second corner.

British people usually shake hands the first time      meet.