Which best describes the use of 'were' in the second sentence? the teacher says that he has noticed a change in callie. he wishes that callie were more friendly today. a) it is incorrect, because 'callie' is a singular noun. b) it is incorrect, because it shifts tense from 'has noticed' in the first sentence. c) it is correct, because it indicates that callie is not friendly today. d) it is correct, because it is describing callie at a previous time.

The correct answer is C. It is correct, because it indicated that Callie is not friendly today.

Explanation:

According to grammar almost always there should be an agreement between the subject and the verb which means if the subject is singular the verb should also have a singular grammatical form. However, there are some exceptions to this, one of this is the use of "were" as if the sentence is a conditional sentence or expresses an unreal state by using expressions such as would like or wish, "were" should be used for all subjects no matter if these are singular or plural as it does not refer to the past in which was is used with the nouns "I, he, she and it" and were is used with "You, they and we", but to an unreal state which is grammatically different. Considering the sentence "The teacher says that he has noticed a change in Callie" refers to an unreal state as Callie is not friendly today, but the speaker would like her to be friendly in that day it is correct to use "were" even if Callie is singular because it refers to a situation or desire that is not real.

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.

where is the article\