I supposed him in the office.
3）suppose + it +形容词 / 名词+ to do 的结构。
I don’t suppose it occurred to you to notify the police.
I suppose it my duty to help those in poverty. 我认为帮助那些处于贫困中的人是我的义务。
2. suppose 可用于“ be supposed +不定式”的结构。
1） be supposed to do sth. = should do sth. 意为“应该 / 理应做某事”，表示被期望或被要求(按规则、惯例)做某事。按规定、习惯、安排等）应当，应，该，须；一般认为；人们普遍觉得会：
You’re supposed to buy a ticket, but not many people do.
I thought we were supposed to be paid today.
You were supposed to be here an hour ago!
How was I supposed to know you were waiting for me?
We are supposed to help each other. 我们理应互相帮助。
You are supposed to hand in your papers before class is over. 希望你下课前交卷子。
I was supposed to be writing a letter but I’m afraid I got sidetracked.
He produced a handwritten list of nine men he was supposed to kill
These new friends of hers are supposed to be very rich.