根据上下文内容在每个空格内填入一个适当的词。 B = Ben D = David B: David, 1___________ do you often do on Saturday? D: I 2___________ do my homework and sometimes I help Mum 3___________ housework. B: How 4___________ Sunday? D: I like to go 5___________. So I often go swimming on Sunday. B: 6___________ your sister Nancy go 7___________ you? D: No, she 8___________. She 9___________ shopping. She often 10 ___________ shopping with my mother. B: You have a happy weekend, David. D: That's right.