Anglisztikások, angolul jól tudók! Mi a concluding sentence a következő paragraphban?

"General education students of varying age groups demonstrate weaknesses in argumentative writing. Content is inadequately developed. Viewpoints are not supported. Students lack knowledge of the structure of argument, but even when writing takes the form of argument, the evidence is not sufficiently developed. Writers fail to provide the necessary support and elaboration. Finally, students do not recognize or respond to opposing viewpoints. In other words, students experience great difficulty in developing evidence to support the thesis of their arguments."

Szerintem a finally-val kezdődő, tehát utolsó előtti mondat a concluding sentence. De más azt mondta, hogy a cl. sentence mindig az utolsó mondata a paragraphnak. Viszont mégiscsak a "finally" a conclusiont kifejező linkword. Hogy van ez? Vagy kéttagú a cl. sentence?