“Hope for the best and prepare for the worst.” is a proverb, ______ life is beautiful and full of frustrations as well.[ ]

She wanted to borrow a book called Red and Black from the library. But she found there was ________ left. She had to wait.

I was deeply impressed ________ the speech by the mayor of Shanghai before the final voting for EXPO 2010

Daming hasn’t done much exercise _______ he got his computer.

Excuse me! You can’t take photos here．Look at the sign. It says “NO PHOTOS”．— Sorry，I _________ see it and I _______ do it.