Look! There is beautiful rainbow in the sky．—Take the books for me, I’d like to take a photo ofrainbow before it disappears．

He is so careless that he always ________his school things at home.

All the students are talking and laughing in the classroom and it’s _________.

The war against Iraq and the suffering _____caused have become a big concern all over the world.

The apples on this tree are bigger thanon that one.