There will be ___ TV broadcast of the World Cup on CCTV Channel 5 this evening.

we have done a lot to build a low-carbon economy,yet it is still _________ ideal. We have to work even harder.

When he walked_______ my desk，he knocked my books________ the floor.

Every few years, the coal workers ______their lungs X-rayed to ensure their health.[ ]

The time he has devoted in the past years ______ the disabled is now considered to be_____ great value ______ him.