This exercise has real mistakes from students. Unfortunately, you have to put in the EXACT correct answer. This means that you need the ... included at the beginning or end of an incomplete sentence.
Some different answers are possible for some questions so it is possible that you could correct a mistake by changing the sentence or phrase with more or less changes than the number of mistakes in brackets.
To do the exercise, type your answer, then press "Check". If you need help, you can click on the "Hint" button to get a free letter.