Your efforts to develop good habits will ______ later, and it is well worth working hard to do so.

This is the first study to compare the        effects of the new drug with its side effects.

 Before the economic crisis came John had sensed the firm was to be ruined and he _____ just in time. 

________ children whose parents had died in the earthquake________ sent to live with families in other cities.

(2013·黄山二检)The red lanterns and colorful banners hanging everywhere ________ the festival atmosphere of the school.