She looks very happy. She __________ have passed the exam.— I guess so. It’s not difficult after all.

I can’t fix my mind on my study, with thechildren ______ so noisily outside my window.

A dog robot could help ____ the room.

Will I get ________ I want when I am very rich— I’m afraid not. Money is not ________.

don’t feel well, you may just______.