初一 英语 英语句子转换 请详细解答,谢谢!(26 20:9:2)

问题描述:

初一 英语 英语句子转换 请详细解答,谢谢!(26 20:9:2)
1.Surfing first started on the Island of Hawaii.(对划线部分提问)
2.A tunnel is very hard to build.(改用为easy询问的一般疑问句)
3.He saw the bag when his bike hit it.(用not.until...改写句子)

1 Where did surfing first start?
2 Is a tunnel very easy to build?
He didn't see the bag until his bike hit it