The chemistry teacher asked the students ________ more attention _________the lab clean.
— Enough sleep is good for teenagers. — Quite right. If you for your favorite TV programs, you will feel sleepy.
— Do you know about the Japanese nuclear crisis(核危机)?— Yes. I know .
— How was your school trip on the farm?—It couldn’t be worse! I don’t want to talk about it.
— What a nice model car! — Thanks a lot. It me the whole day to make it.
— Recently I have read many about the droughts in the south of China.— Oh, the farmers will have a bad harvest this year.