What did Lu Xun do after he gave up medicine—He devoted ______writing all his life.

Though ______in a big city, Peter always prefers to paint the beautiful scenes of country life.

Researchers are now conducting hibernation experiment and can use chemicals to put living cells into sleep-like state_____ they don’t age.

Little Johnny felt the bag，curious to know what it ______.

If you can’t find the place, I will show you_______.