Question

In which statement(s) labeled (A) to (D) is/are the verb(s) completely expressed in active voice?

(A) She takes two jars and fills each of the jars with the same amount of water.
(B) She adds fifty drops of vinegar (acid) to one jar and adds nothing extra to the other.
(C) She then puts 10 similar fish in each jar. Both groups of fish are cared for (oxygen, food, etc.) in identical fashion.
(D) After observing the behavior of the fish for a week, she makes her conclusions.

Answer 1

Well, in A, “She” is doing the actions of both verbs, “takes” and “fills.” So A is active.

What can you say about the main subjects and verbs in the other 3 sentences?

Answer 2

I'm gonna say A, B, and D are active. C is passive

Answer 3

Right