英语合并句子1、Could you tell us?What didi he buy yesterday?(合并成一个宾

1、Could you tell us? What didi he buy yesterday?(合并成一个宾语从句）
Could you tell us what he bought yesterday?
2、He is a smart boy. The teacher like him very much.(合并成一个状语从句）
He is a smart boy because the teacher likes him very much.
3、The star didn't turn up. It made us disappointed.(合并成一个主语从句）
That the star didn't turn up made us disappointed.
4、He trained very hard. He could win the gold medal.（合并成一个状语从句）
He trained very hard so that he could win the gold medal.
5、It was late. They continued working.（合并成一个状语从句）
Though it was late they continued working