Though many of the heavy smokers have realized the serious effect that smoking has ______ their health, they continue to smoke instead of ______.

He was given a special medal, for he reached his goal in sports ________his disability both in legs and in eyes.

—You seem to show interest in cooking.
—What?_________,  I’m getting tired of it.

Policemen think that where there is violence , drugs with damaging effects on kids are always ______ it．

he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy.

—Going to work today, Brenda?
—No. It’s my day ______ today.

______, ______ many boys, Jack like playing football.

----What made Professor Zhang so angry this morning?
---- Paul and Bill told lies,but neither of them apologized______it.

High-speed trains which travel through my home town ______ up to 250 km per hour make it a small world.

—Shirley, can I have a look at your photos?
—       .Here you are.