Is ________ name Bob?   Yes, I’m Bob. 

-- Have you finished your homework yet?-- No, not yet. I think it’ll take me __________ half an hour.

Did you find __________very interesting to play yo-yo? 

Are ________of you from the same family，Jane and Ann?

—Eric, are your parents angry about your English in this exam?—Oh,            of them is angry. They just told me to get better grades next time.