He missed  _______ when he was in Africa.

_____as a responsible person ，Tony was appointed head of the department.

There was a terrible noise _______the sudden burst of light.

Many gases        in the atmosphere actually        heat energy that escapes from the Earth’s surface back to the earth.

　　　 by the loss of such a valuable jewel,Rachel’s mother hires the famous detective Sergeant Cuff to investigate the theft.