IN EACH SENTENCE DELETE THE ONE WORD / PHRASE THAT IS NOT APPROPRIATE /GRAMMATICAL.

1. This paper outlines / proposes / describes / discovers / presents a new approach to…
2. This paper validates / examines / seeks to address / focuses on / discusses / investigates how to solve…
3. This paper is an overview of / a review of / a report on / a preliminary attempt how bilinguals separate the two languages while talking.
4. The aim of our work is to further / extend / widen / broaden / amplify current knowledge of…
5. This paper takes a new look at / re-examines / revisits / informs / sheds new light on how politicians use their power,