Active-Passive voice Questions and Answers

Answer: B

Correct answer: The main skills sought to be developed by us include analysing, interpreting and evaluating ideas.

Only the relative clause goes passive: we seek to develop becomes sought to be developed by us, with both verbs converted. The main verb include stays active, since the skills are the ones doing the including.

Answer: A

Correct answer: I shall be invited by her.

The future will invite becomes the passive shall be invited, with shall taking the first person subject. Will invited and will been invited put the wrong form after the modal.

Answer: D

Correct answer: He is known to me

Know is one of the verbs whose passive takes to rather than by for the person who knows. The tense stays present simple, so was and has been are both wrong.

Answer: B

Correct answer: She will be praised very much by you

The future will praise becomes will be praised. Will praised omits be, and will being and will been are not verb forms.

Answer: C

We cannot make ‘me’ ‘us’ on our whims as it would alter the meaning of the sentence, so option (a) is out. The best choice that aptly reflects the conversion of the subject in the active voice to the object of the passive voice is option (b). The other two have trouble in their sentence arrangement and are also incomplete in the meaning when compared to the question sentence

Answer: B

Correct answer: A circle was drawn by them in the morning

Drew is past simple, so the passive is was drawn. The continuous option makes the drawing ongoing, and the perfect options tie it to the present, which in the morning rules out.

Answer: C

Correct answer: I was presented a bouquet on my birthday by him

Present takes two objects and it is the person that becomes the subject. The past simple gives was presented, and the time phrase stays next to what it modifies. The present and future options change the tense.

Answer: B

The active form is 'The doctor will have examined a number of patients by 12 o'clock'. The passive 'will have been examined' is the future perfect passive, and the active voice of it is 'will have examined', with the doctor as the subject. Option A uses the simple future, option C the simple past and option D the present perfect, so each changes the tense of the original. The active form keeps the tense 'will have examined' and puts the doctor at the front, while the number of patients becomes the object. The other options change the tense to the plain future, simple past or present perfect and so alter the time of the action.

Answer: D

'I shall be obliged to go' is the passive of 'Circumstances will oblige me to go'. In the passive the object 'me' becomes the subject and the verb takes the form 'be' + past participle: 'I shall be obliged'. The agent 'circumstances' is dropped, as it adds little. The other options change the meaning by making the speaker oblige himself or by describing leaving under circumstances.

Answer: B

The passive is 'I was warned by the Professor to complete my practicals before the stipulated time'. The active sentence is in the simple past, so the passive uses 'was warned' with 'me' as the new subject. Option A uses the past perfect and option D uses it too, so each changes the tense. Option C no longer says the Professor did the warning in a passive form. The sentence is simple past tense in the active voice, 'warned', so the passive keeps the simple past, 'was warned', and the infinitive 'to complete my practicals' stays as it is. The past perfect passive of options A and D wrongly shifts the time of the warning.