.Having retired from the local government, he now ____himself with the welfare of the disabled.

He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system _________.

The mascot of Shanghai Expo is “Haibao”. It’s designed to ________ the Chinese character for “human”, which goes with the theme of the Expo.

But someday, all the work we have done will ____; we will go to college and go on to have a suitable job．

If your friend comes here with any more criticism about how we bring the children up, I'll tell him to ________ his own business.