Question

The sentence has been given in the Active/Passive voice. From the given options, choose the one which best expresses the given sentence in the Passive/Active voice.

One should keep one’s promise.

a)One’s promise should be kept by us.
b)One’s promise has to be kept.
c)A promise should be keeping.
d)A promise should be kept.

Answer 1

Hint: We can indicate an action in a sentence in two ways- Active voice or Passive voice. Both active and passive voices are used to represent the action of a sentence through different compositions.

Complete step by step solution:

 As given in the hint, the two given voices help in indicating an action.
Let’s look at the two voices-
Active voice- We use active voice to indicate a subject that performs the action of the verb. Example: John writes the letters. Here, ‘John’ is the subject that is performing the action of ‘writing’ the object ‘letters’.
Passive voice- We use passive voice to emphasize the action of the verb and the object in the sentence. Example- Letters are written by John. Here, ‘Letters’ is the object that receives higher importance than the subject.
There are some rules that we follow while converting a sentence from active to passive voice-
We interchange the position of the subject and the object.
We can use ‘by’ with the subject to indicate the action performed by the subject.
We always use the ‘past participle’ or the ‘3rd form of the verb’.
Now, let’s examine the given options-
Option a - ‘one’s promise should be kept by us’ indicates the use of ‘us’, but we cannot use ‘us’ as the corresponding pronoun for ‘one’. Hence, it is an incorrect option.
Option b – ‘one’s promise has to be kept’ indicates the use of ‘has to’, but we cannot change the already given modal verb. Hence, it is an incorrect option.
Option c – ‘A promise should be keeping’ indicates the use of ‘keeping’, but we cannot use the continuous form of the verb in the passive voice. Hence, it is an incorrect option.
Option d – ‘A promise should be kept’ indicates the use of the ‘past participle form of keep’ and a change in the position of the subject and indirect object. Hence, it is the correct option.
The correct answer is Option ‘d’.

Note: We always use the past participle form or the 3rd form of the verb in the passive voice, while the auxiliary verb depends upon the tense form of the verb given in the active voice.