A.On Oct 4.B.On Oct 10.C.On Oct 17.听第10段材料,回答第17至20题。17.How did Tom feel when he got up that morning?A.Guilty.B.Happy.C.Sad.18.What was the real purpose for Tom's mother to send himout?A.To buy her some vegetables.B.To give him a big surprise.C.To choose his birthday gift.