Multiple choice

Directions: Out of the four alternatives suggested, select the one which best converts the given sentence into passive or active voice.

Then they tested the strength of the germ.

  1. The strength of the germs was tested by them then.

  2. The germs strength was tested by them then.

  3. The strength of the germs was tested by them.

  4. The strength of the germ was then tested by them.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

While changing the voice, we interchange the respective places of the subject and the object. In passive voice, we always use the third form of verb with the helping verb. This is a case of past simple tense. We use 'was/were' with the third form of verb in passive voice in this tense. Modifier 'then' is correctly placed in option 4.  

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