In this test you will be asked to listen to 40 pairs of sentences.
Your task will be to judge which of the two sentences you think sounds the most natural paying particular attention to the realisation of "um" and "uh".
As a help you will also be presented with the sentence of the audio.
We ask that you listen to both sentences in each pair at least once and then make your judgement.
Please complete the survey in one sitting, but feel free to take small breaks when needed, you will not be able to return to it later.