(2013 ·安徽蚌埠二次质检)—In early autumn Steve applied for admission to college.He wanted to go ________ but to Cornell University.—Oh, why not Harvard?

The nurse was very kind to the boy at first, but finally, her ____ gave out and she lost her temper. 

 —Can I call on her next week ?— Yes，if ______ . 

The good thing about the children is that they ________ very easily to new environments.

Don’t think you are _______ when you make a mistake _______, since no one is perfect.