The correct answer is Adverb clause. Hope this helps you.
Answer:
I believe a tutor should have experience in the subject they are tutoring for.
Explanation:
I believe a tutor should have experience in the subject they are tutoring for because it's important for the tutor to understand the concepts they are trying to teach. It would be harder if a tutor just wings it, and teaches a student about a concept they know nothing of. Furthermore, it's also very hypocritical. The student might think, 'why is someone teaching me about something they don't know?' The tutor isn't going to help the student get any better, and the tutor isn't getting any better by teaching something they don't know anything about. Therefore; it is important and essential for a tutor to have substantial experience in the subject they are tutoring for.
<span>B) establish background information
The author, as she drafts the sentences, is adding information that will provide background insight into the characters and situation. The sentence went from the reader knowing nothing besides a cost to knowing what the expensive thing is, who it's for, and why it's going to be so expensive. </span>
Question 3: a snake
Question 4: enough