Why didn’t you buy the pen on your way home? ---Sorry, I forget ______money with me.
--- 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!
---- Our city is developing so fast. ----Yes. Many modern buildings _____ in the city next year.