We aren’t sure of the weather. We _______ sightseeing unless it_________ tomorrow.

__________ you __________ breakfast?– Yes, I had it at 6:30.

It’s ________ of Chen Guangbiao(陈光标) to donate 100,000,000 yuan to people in debris disaster areas(泥石流灾区) in Taiwan. I think he is one of the best philanthropists(慈善家) in the world.

Is your brother afraid _____ the dark? —Yes. He goes to sleep _____ the bedroom light on.[ ]

I want to buy a hat, but there are so many kinds that I can’t decide to take.