What do you suppose ________ (happen)to him?
问题描述：
What do you suppose ________ (happen)to him?
答
What do you suppose __happened______ (happen)to him?
happenedv.发生（happen的过去式,过去分词）
手机提问的朋友在客户端右上角评价点【满意】即可.suppose的用法你能跟我说一下吗 会有悬赏的suppose的基本意思是“猜想；以为；假定”，但在具体的语言环境中意义不止于此，其用法如下：
1. suppose + that 从句，表示“猜测；假定”。如：
I suppose that you are right. 我想你是对的。
You can suppose that A equals B. 你可以假定A等于B。
2. suppose +名词 / 代词 + to be...，表示“认为……是……”。如：
Many people suppose him to be over 50. 许多人认为他已经50多岁了。
3. suppose用于祈使句中，表示“让……”。如：
Suppose we go for a swim. (= Let's go for a swim.) 让我们去游泳吧。