What did you write in your letter? Let me see.(合并为一句)

Let me see what you wrote in your letter.合并成了一句陈述句，what在这里引导的是宾语从句

Let me see what you write in your letter.

Let me see what you wrote in your letter.

【希望帮助到你，若有疑问，可以追问~~~
祝你学习进步，更上一层楼！(*^__^*)】

Let me see what you wrote in your letter?

Let me see what you wrote in your letter.
请指出,希望能和你一起探讨~
如果认为我的回答好的话,请及时采纳,

Let me see what you wrote in your letter.

【俊狼猎英】团队为您解答。

Let me see what you wrote in the letter.