题目

阅读理解Tom is an English boy. He is fromLondon. He likes China very much and speaks a little Chinese. He is a studentin No. 17 Middle School. He is in Class 2. His sister, Kate is in No. 8 MiddleSchool. She is in Class 4. Wang Lan and Wang Pin are his classmates(同学). They often help Tom with his Chinese and Tom helps them to learn（学习） English.Today, Tom has two new classmates. Theyare Lucy and Lily. They come from the USA. They are twins（双胞胎）. They look the same. They are twelve. But Tom is not well and he isnot at school. Wang Lan and Wang Pin look after（照顾）1．一根7.8米的长绳，每1.7米剪一段做单人跳绳，这根长绳可以做多少根这样的单人跳绳？还剩多少米？