The Spring Festival is _____ time when Chinese people get together to eat, drink and have _____ fun with each other.
He picked up an envelope________50 dollars in it.
I didn’t hear the phone. I ________ asleep.
—Does he know how to work out the problem? —Yes,he has ________ a good idea to solve it.
The trip will take about five months;it will be a long time ________ we meet them again.
This kind of medicine has a bad ________on our brains.