Cloning technology can human life by creating human organs to replace those which fail to function.
--- I think you should phone Jenny and _____ her for what you did.--- No way. It is her fault. I’ll never ______ her for what she has done to my parents.
The students listened carefully to the teacher with their eyes _____ on the blackboard.
I would appreciate _______ if you could pay it in cash.
My money is ________, so I have to call my parents saying that I am missing them.
Riding a bicycle can be fun. But ______ you ride a bike to work, and then there isn’t one to ride home?