请教几道初三英语选择题
1.是 an university 还是a
2.—Look!She’s skiing so fast!
— It is hard to（realize/imagine/know）her leg were once broken.
3.I wonder （how much these book cost/what the price of them is）.
4.Kate,with her parents（has gone/have gone）.
5. The operation on his leg（lasted/spent/cost/included）one hour.
给出理由 谢谢