Apersonisluckyifhiscareer________withhisinterestandhobby

Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.

Donotletthis__(say)ofyou.Itshowsanunattractiveindifferencetoyouremployerandtoyourjob.

At the end of the conference, all the_(participate) were asked to fill out a questiolmaire

A good worker in a key spot could, he kept up production, take all the coffee breaks he wanted, and the bosses would very likely look the other way.