The correct answer is option 1 i.e. The plants will not be watered by them.

• The original sentence is in active voice, with the subject "they" performing the action of not watering the plants.
• To convert the sentence into passive voice, the object of the active sentence (plants) becomes the subject of the passive sentence, and the subject of the active sentence (they) becomes the agent (or is omitted).
• The verb "will not water" is changed to the passive form "will not be watered."

Therefore, "The plants will not be watered by them." is the correct expression of the sentence in passive voice.

The correct answer is option 3 i.e. Water covers most of Earth's surface.

• The original sentence "Most of Earth's surface is covered by water" is in passive voice because the subject ("Earth's surface") is acted upon by the verb ("is covered").

• In contrast, the selected option "Water covers most of Earth's surface" is in active voice because the subject ("Water") performs the action of covering ("covers") the object ("most of Earth's surface").

• Therefore, the selected option transforms the sentence from passive to active voice.

The correct answer is Option 2 i.e. What is being written by you?

Active voice- What + is/am/are + subject + v4 + other words.

Passive voice- What + is/am/are + being + v3 + by + subject + other words.

As the chosen option follows this structure it will be correct.

The correct answer is option 3 i.e. Nobody is trusted by him.

• The sentence is an assertive sentence.
• It is in the Simple Present Tense.
• Structure:
  • Active: Subject + do/does + not + V1 + object…
  • Passive: Object + Is/are/am + not + verb (IIIrd form) + by + subject…

Note: In the case of "anybody" we change it to "nobody" in the passive voice and hence, "not" is not used. 

Thus, the correct passive form of the given sentence is:

Nobody is trusted by him.

The correct answer is option 2 i.e. Your tickets to the amusement park can be brought by you all at this counter.

The given sentence is in active voice of the modal verb.  Let us understand the structures for active/passive voices for such sentences.

Active: Subject + can+ verb (Ist form) + object...

Passive: Object+ can + be + verb (IIIrd form) + by + subject...

Going by the above rules, the correct option is 2.

The correct answer is option 2 i.e. Let the joystick at the centre not be touched.

Imperative sentences are addressed without naming the subject. Hence these sentences are without Subject and starts with the Principal Verb.

The given sentence is in active form of an imperative sentence. Let us understand the structures for active/passive voices for such sentences.  

The passive voice of imperative sentences which suggest order, suggestion or request can be made in two ways:

Active: Verb + object

Passive:

1. Let + object + be + past participle
2. You are requested/ordered/suggested + to + verb (Ist form) + object.

The correct answer is Option 3 i.e. Somebody recommended me another lawyer, Anjana.

The sentence is in passive form of simple past tense. The structures for active/passive voices are:

Passive: Object + was/were + verb (IIIrd form) + by + subject

Active: Subject + verb (IIIrd form) + object

Going by the above rules, the correct option is 3.

The correct answer is option 4, i.e. innocuous.

1. Insolvent means unable to pay debts owed.
2. Inorganic means not consisting of or deriving from living matter.
3. Integral means necessary to make a whole complete; essential or fundamental.
4. Innocuous means not harmful or offensive.

Option 4 expresses the meaning of the given words and hence becomes the correct answer.

The correct answer is option 4 i.e. The picture was painted beautifully by Picasso.

Active voice- Subject + v2 + object + other words.

Passive voice - Object + was/were + v3 + by + subject + other words.

As the chosen option follows this structure it will be the correct answer.

The correct answer is option 2 i.e. The bell was not rung by the peon on time.

Active voice- Subject + did not + v1 + object + other words.

Passive voice - Object + was/were + not+ v3 + by + subject + other words.

As the chosen option follows this structure it will be the correct answer.