The book tells stories of the earthquake through the eyes of those _______ lives were affected.
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.