The given sentence is in Active Voice. As per the given question we have to change it into Passive Voice.
The structure of the given sentence as follows:
Subject + V2+ Object. (Active Voice)
Subject (objective case)+ was/were + V3 + Object (subjective case). (Passive Voice)
Example:
Their cousin showed them some rare photographs. (Active Voice)
They were shown some rare photographs by their cousin. (Passive Voice).
The subject of the given sentence is 'All his friends'.
The object of the given sentence is 'him'.
The subject will be put in place of the object and the object will be put in place of the subject.
And 'laughed' will be changed into 'was laughed'. Lastly, the 'by' preposition will be added.
Therefore, as per the points mentioned above, we find that the correct answer is Option 2.

In Active Voice, a sentence emphasizes the subject, performing an action.
In Passive Voice, a sentence emphasizes the action or the object of the sentence.
The given sentence is in the active voice and 'her failure' is the subject and 'us' is the object.
When we convert this sentence into passive voice, the subject 'her failure' of the active voice becomes the object, the object 'us' becomes the subject 'we'.
The passive format "were + V3 (surprised)" should be used.
This is the active and passive voice rule for the past simple tense.
Hence, the correct answer is option 2.

In Active Voice, a sentence emphasizes the subject, performing an action.
In Passive Voice, a sentence emphasizes the action or the object of the sentence.
The given sentence is in the active voice and 'He' is the subject and 'a large pizza' is the object.
When we convert this sentence into passive voice, the subject 'He' of the active voice becomes the object 'him', the object 'a large pizza' becomes the subject.
The passive format "was + being + V3 (eaten)" should be used.
This is the active and passive voice rule for the past continuous tense.
Hence, the correct answer is option 3.

The given sentence is in the Active Voice. As per the question we have to change it into Passive Voice.
The process of transformation as follows:
The subject of the given sentence is 'the editor'.
The object of the given sentence is ''a rude comment''.
The subject will be put in place of the object.
And the object is put in place of the subject.
'Did' will be changed into 'was'.
Hence, the correct answer is Option 4.

The given sentence is In Passive Voice. As per the question we have to change it into Active Voice.
The structure of transformation as follows: Subject+V2+Object.
(Active Voice) Subject (objective case)+was/were+V3+Object (Subjective Case).
(Passive Voice) 'He' will be changed into 'him'.
'Was given' will be changed into 'gave' as per the structure.
Hence, by applying the above structure in the given sentence we find that the correct answer is Option 2.

The structures for both the active and passive forms for future indefinite tense are given below:
Active form- Subject + shall/will + V1 + Object
Passive form- Object + shall/will + be + V3 + by + subject
Example:
She will play football. (active)
Football will be played by her. (passive)
Following this structure in active voice form, we get the 2nd option as the correct answer.

The given sentence is in an active voice form, hence we need to convert it into a passive voice form.
We need to follow these instructions while changing the voice of an assertive sentence.
Find the subject (We) and object (good news) of the sentence and exchange their places.
The given sentence is in the present indefinite tense.
The passive verb form for the present indefinite sentence: is/are + V3 + by + subject.
So, 'expect' changes into 'is expected'.
At last line up the remaining part.
Following this structure, we get the 4th option as the correct answer.  
Following these steps, we finally get- Good news is expected by us about the corona vaccine.

In Active Voice, a sentence emphasizes the subject, performing an action.
In Passive Voice, a sentence emphasizes the action or the object of the sentence.
The given sentence is in the active voice and 'our advocate' is the subject and 'the case' is the object.
When we convert this sentence into passive voice, the subject 'our advocate' of the active voice becomes the object, the object 'the case' becomes the subject.
The passive format "is + being + V3 (argued)" should be used.
This is the active and passive voice rule for the present continuous tense.