I think I had at least a billion tests, including _____ in which they cut out a piece of muscle from my leg and looked at it under a microscope.

    _ may have a chance to be successful if he tries his best.

 —Which of the caps will you take? --I’ll take _______,one for my father ,the other for my brother.

 surprised us very much that John should fail in the physic test．

. I'd really appreciate ________ if you would turn off the lights before you leave.