题目内容：

用（may be/do) (may have be /done)填写句子
She_____(come) with us.She hasn't made up her mind
I______(pass) the exam.I don't know I have't heard the results yet
They ______(do) good news soon I'm not snre
He thinks that there_____(be) a change in the programme
They were very late.They_____(ruiss) the bus
She didn't come to work yesterday .She_____(be) ill
He did finish it .He______(have)too little time to do it I'm not sure
We haven't made up ourminds.We_____(traved)to Hainan this winter
He_____(find) his lost key I'm sure
She doesn't look japanese.She______(be) Kerean