They felt very tired after two _______long walk. A.hour B.hours C.hour’s D.hours’ 15.________ room is big and nice. A.Kate's and Jane's B.Kate's and Jane C.Kate and Jane's 16.Tom and Jack are brothers. _________ father is a doctor. A.Tom's and Jack's B.Tom and Jack C.Tom and Jack's D.They 17.--Whose bike is this? Is it yours, John? --No,it’s not______. It's________. A.me, Bill’s B.mine, Bill C.mine, Bill’s D.me, Bill