正确的句子应该是She thinks that soccer is played by boys.
她认为足球应该是男子们玩的.
例句：She thinks that he made this cake.她认为他做了这个蛋糕.
变成被动句是 She thinks that this cake is made by him.
她认为这个蛋糕是（被）他做的.
I can't think what you mean.
我想像不出你是什麽意思.
If you want to make money you've got to think money.
你要是想赚钱,脑子里就得想著钱.
I think this is their house but I'm not sure.
我想这是他们家,但不敢肯定.
If you think I'm going to lend you my car you can think again!
你要是以为我能把汽车借给你,你还是另打主意吧.
I think you are very brave.
我认为你非常勇敢.
Who'd have thought it?
谁会想到呢?
You can't think how glad I am to see you.
你无法想象我是多么高兴见到你.
He thinks business all day.
他整天想着生意.
◆ think of／think about／think over ◇ 这三个词组都与“想”有关,但所表达的含义有所不同.◇ think of多用来指“想起,认为”.
如：Last night,before I went to bed,I thought of my parents．昨晚我睡觉前,想起了我的父母.
What do you think of that book?你认为那本书怎么样?
◇ think about 多用来指“考虑某事情或对某事进行思考”.
如：Think about what you have done!想想你所做的这一切吧!
◇ think over意思是“仔细考虑,认真思考”.
如：Before you answer this question,please think it over．在回答这个问题之前,请认真考虑一下.