-How do you like our restaurant?-I couldn’t have found a ________ one.
He made another wonderful discovery, _____ of great importance to science.
Luckily, we'd brought a mad map without _______ we would have lost our way.
The boss ______ department Ms.King worked in ten years ago looked down upon women.
He bought a book that could glee him much knowledge and ______ could help him to kill the time.
Whenever I met him, _______ was fairly often, I like his sweet and hopeful smile.