根据首字母或汉语提示补全单词。 1. Could you please s________ the floor? 2. Lucy h _______traveling by plane, but she likes taking the train. 3. I like to do c ________,such as cleaning, washing. 4. —Do you like to do the l_______? —No, I don't. Washing is boring. 5. My father isn't free now. He's having a________(会议).