Sentence completion questions test your ability to follow the recording, identify key points and understand rephrased information in the questions. Here is a sample question style. With sentence completion questions, you have to complete a sentence using a number of words or a number. Generally there are no more than three words for one answer, but it is important to always read the instructions very carefully. A common error is when candidates decide on an answer but do not read the sentence again to check that it really fits the context of the completed sentence.