1.He wants to learn music[改为同义句] He [ ] [ ] to learn music

1.He wants to learn music[改为同义句]

He [ would ] [ like ] to learn music.

解析：want to do sth = would like to do sth 想做某事

2.they realized [many things about China ] on our trip [对括号句子提问]

[ What ] [ did ] they realize on the trip?

解析：原句时态是一般过去时,而且是对做的事情提问,所以用what did 提问

3.l hope to travel around the country. [改为同义句】

My【 hope 】【 is 】travel around the country .

解析：第一句中的hope是动词,同义句的hope是名词


希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问,可以详谈嘛(*^__^*)

1. would like want to sth.=would like to do sth. 想要做某事
2. What did they realize on the trip? 过去时用did做助动词
3. wish is hope的名词同义词是：wish，be to do sth 表示打算
希望对你有帮助

is likely是想要的意思。
how did他们怎么认为这场旅行？
dream is