They eat many but little .
--- I feel nervous about the coming summer.---- Me , too. Hot weather _____ makes people feel hot, ______ causes serious health problems.
--- What do you think of the math problem ? --- It’s very hard and nobody has _______.
—Come and join us, Jimmy! ---I’m sorry, but I’m really busy now. If I ________ time, I would certainly go.
The environment is becoming worse and worse. I think we should do something to ____ people ____ cutting the trees in order to protect the earth.
Our class won the first prize in the match. ______ the news was!