按要求改写下列句子1,They have some foreign friends at school.(改为单数句)2

按要求改写下列句子
1,They have some foreign friends at school.(改为单数句)
2,My pen is broken.(就划线部分提问,划线部分为”broken”)
3,It's ten past nine.(就划线部分提问,划线部分为”the past nine”)
4,Three and eight is eleven.(就划线部分提问,划线部分为”eleven”)
5,Tom often gose to school by bike.(就划线部分提问,划线部分为”by bike”)