What’s the central idea of the passage，Bob—Sorry，I can’t make________of it.It’s beyondmy ability.

Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.

Mammals ________ nearly all warm-blooded animals except birds.

He finds ____ hard to finish the work in two days.

Why don’t you like the shirt—Its neck is not big for me at all Haveyou got a shirt of this kind with _____ neck