The past two years ________ a sharp rise in oil price，which adds to the burden of auto transportation industry.

—I have brought you the book you need.—Oh, good! I        afraid that you        .

—May I use your car this afternoon?—Sorry. It broke down this morning again. I’ll have it ________.

It’s only six o’clock now; Little Tom should be up ,though, because he _____ for nine hours.

I        into robots and used to make mobile phones as well as help with medical operations.