I have an appointment ________ Dr.Smith,but I need to change it. (2013·北京,26)
A warm thought suddenly came to me ________ I might use the pocket money to buy some flowers for my mother’s birthday.
Mr.Smith asked the boy a question________he could go to the concert with him.
When you are reading,make a note of ________ you think is of great importance.
I’d like to work with ________ is honest and easy to get on with.
Water,which seems so simple and common,is ________ makes life possible.