“Must we do it now?” “No, you _____.”

_______ which way to take, the little boy behaved like a real gentleman who comforted his sister from time to time.

She ______ have left school, for her bike is still here.

If I ______ plan to do anything I want to，I’d like to go to Tibet and travel through as much of it as possible. 

On AIDS Day, President Hu Jintao demanded that the problems _________ paid special attention to.