Modern science has given ____clear evidence ____ smoking can lead to many diseases ____ it’s time for us to take measures.

He was born in Shanghai ______ February 5, 1989. [ ]

You _________ drive on when the traffic light is red.

When you come here for your holiday next time, don’t go to ________ hotel. I can find you ________ bed in my flat.

There is a smile on Miss Gao’s face. She must be _______ with Sam’s work.— I think so. No one did as__ as him in our class.