The success of a governmentshould be measured the healthand happiness of the people as well as the development of economy.

Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time

It is difficult for him to make both ends ________ with ________ cost.

By popular consensus, great painters canmix the colours together within a short period of time to get the__________colour.

unhappy when he sold his guitar.After all,he_____it for a long time.