are these answers correct for the shifts-verb mood and voice quick check

1: unnecessary changes in the form of the verbs within a sentence
2: They are confusing and can make writing or a conversation difficult to follow.
3: Mistakes were made by the president.
4: active

1: incorrect verb tense

2: passive
3: passive
4: correct

are these answers correct for the shifts-verb mood and voice quick check

1: unnecessary changes in the form of the verbs within a sentence
2: They are confusing and can make writing or a conversation difficult to follow.
3: Mistakes were made by the president.
4: active

Yes, these answers are correct.

It seems like you are referring to a quick check related to the shifts in verb mood and voice. Let's go through each answer to see if they are correct.

1: Unnecessary changes in the form of the verbs within a sentence.
This answer is not completely correct. Shifts in verb mood and voice refer to changes in the way a verb is used within a sentence, which can affect the subject's action, the emphasis, or the overall tone. However, these shifts may be necessary to convey a specific meaning or to maintain consistency in writing.

2: They are confusing and can make writing or a conversation difficult to follow.
This answer is correct. Shifts in verb mood and voice can indeed be confusing and make the writing or conversation difficult to follow, especially if they are inconsistent or not properly integrated into the overall structure.

3: Mistakes were made by the president.
This answer is an example sentence but does not directly address the concept of shifts in verb mood and voice. The sentence itself is in the passive voice, indicating that the subject, "Mistakes," is receiving the action performed by the president. However, it does not show any shift in verb mood.

4: Active
This answer seems incomplete. It is unclear what "active" refers to without more context. The term "active" can be related to verb voice, where the subject performs the action. However, it is not clear if this is referring to an answer option or if it is meant to describe something else.

In order to fully evaluate the correctness of the answers, I would need more information on the specific instructions and options provided in the quick check.