They eat only plant foods, and take care to ________ animal products from other areas of their lives.
She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
I just can’t figure out the meaning of the word---so I’ll have to ___ the dictionary.
Being determined is a kind of quality and that’s ________ it takes to do anything properly.
Before making your speech, you’d better ________ your thoughts and ideas.
—Did you remember to give Jenny the money? —Yes. ________ I saw her, I'm sure.