If your OECT Feedback indicates you should work on your English thought grouping, phrase stress, and/or intonation via shadowing, watch the video below to learn about this technique:
Then, find a TED Talk (e.g. from Monica’s list of recommended 3-minute TED Talks) or a Newsy report you find interesting and shadow the speaker’s thought groups, phrase stress (i.e. lengthening of the stressed vowel in the final key word of the pause unit), intonation (i.e. the rise and fall of his or her voice), etc.