____ a broken chair , the room is empty
The findings of the research, _________ on a lot of experiments, are convincing.
The boy cheated in the English examination so he deserved ________.
-- He said you’d be giving them a lift. -- ________. There are already five people.
-- Who is dancing to music in the next room?-- ________ the children.
Check your paper carefully to see ________ you have made any mistakes.