44. He ______ all his time and energy to his work.
In my opinion, the view Jennifer the other day is well worth discussing at this meeting.
Only when the final examination was coming ______ he had quite a lot to do.
Practicing Chinese kong fu can not only ______ one’s strength, but also develop one’s character.
Scientists are convinced ___ the positive effect of laughter ____ physical and mental health.
—Never say never, and you’ll make it.—That’s it. .