At our factory there are a few machines similar to _______ described in this magazine.
When he came back three hours later, they were still ____on the sofa, _____ in conversation.
Tom’s parents are worried that he is__to the computer games which is__to children.
---Where did you save the drowning girl, ________ parents were both professors?---It was from the lake ______ she often went fishing.
John complained to the bookseller that there were several pages______in the dictionary.
When I talked with my grandma on the phone, she sounded weak, but by the time we ______ up , her voice had been full of life.