Please ______ that you have closed all the windows and turned off the lights before you leave the room
People tend to love agricultural products ________ without the use of fertilizers, pesticides or chemical additives.
Taught in a more professional way, you _________ the swimming skill much better.
It really matters _______ he treated the latest failure, for the examination is around the corner.
Each party _______ respect the articles of this contract, or a double-sized financial punishment is a must.
Taking drugs has become part of every sport _________ athletes seek to achieve beyond their natural limits.