1. No one - and I mean no one -
2. Take - That
3. The wife loved her husband very much - especially...
4. Homework is great - I love it -
5. I can work with anyone in this department - except Sally
6. Being a success in this class is easy - all it takes...
7. I'm not sure about this one
8. As I am a keen athlete -...
A pronoun shift is when you modify the pronoun in the same sentence, then the reader is not able to understand who is the subject of the sentence.
In the exemplified sentence the pronoun inserted incorrectly is <u>they</u>, shifting the initially singular subject "The student" (pronouns he or she) to a plural pronominal form.
When correcting, the writer must evaluate which is the desired pronoun, that fits his subject.:
<em>(Singular form) If the student feels ill, he/she should be sent to the nurse.
</em>
<em>(Plural form) If the students feel ill, they should be sent to the nurse.</em>
So, the pronoun shift that should be circled is They
