Antonija  +  204324 Wed, 08 Mar 06 12:02 PM Hello! Can you please tell me which of the two expressions is better and how I can express the idea that the effect lasted throughout the whole period of working hours? Thank you in advance In meanwhile, I have found out that the drug worked for/took effect for seven to eight hours, therefore during the whole? working hours. Antonija Joined on Sun, Mar 5 2006 Croatia Contributing Member 1,316

	Grammar Geek  +  204358 Wed, 08 Mar 06 03:10 PM How's this: ...the drug was effective for seven to eight hours, lasting throughout the work day. Grammar Geek Joined on Tue, Jan 10 2006 Veteran Member 19,683 Barbara, who answers in American English. My housekeeping skills attest to the truth of the second law of thermodynamics: Left to themselves, things get more and more random!