---I’d like to buy this book, dad.---Sorry, my darling, but the book is _____ adults only.
He pointed to ______ looked like a tomb and said, “Ghost.”
After _______ had happened he could not continue to work there.
She was so angry and spoke so fast that none of us understood _______ he said meant.
______ medicine works in a human body is a question _______ not everyone can understand fully.
____ has helped to save the drowning girl is worth praising.