Select the correct Active/Passive form of the given sentence.

The teacher said, “Be quiet, boys.”

The teacher urged the boys to be quiet.

The correct active/passive form of the given sentence is The teacher urged the boys to be quiet.

The sentence is in the simple present tense, which is used to describe an action that happens regularly or now. The active voice of the sentence is formed by putting the subject of the sentence before the verb and removing the word "by." In this case, the subject of the sentence is "teacher" and the verb is "urge." So, the active form of the sentence is "The teacher urged the boys to be quiet."

The other options are incorrect because:

• The teacher called the boys and asked them to be quiet.” This is incorrect because the word "called" is used to indicate a command, but the teacher is urging the boys.
• The teacher said to boys to be quiet.” This is incorrect because the word "to" is used to indicate a command, but the teacher is urging the boys.
• The teacher commanded the boys that they should be quiet.” This is incorrect because the word "commanded" is a stronger form of "urged," and the teacher is not giving a direct order.
• The teacher said, “Be quiet, boys.” This is the original sentence in the active voice.