Select the correct indirect form of the given sentence.

The teacher said to the students, "I will not tolerate such behaviour."

The teacher told the students that he would not tolerate such behaviour.

The correct indirect form of the given sentence is:

The teacher told the students that he would not tolerate such behaviour.

The other options are incorrect for the following reasons:

• The teacher told the students that he would not be tolerating such behaviour. The present continuous tense "would be tolerating" is used to indicate an action that is happening at the time of speaking. In this case, the action of not tolerating such behaviour is happening in the future, so the simple future tense "would not tolerate" should be used.
• The teacher said to the students that he will not tolerate such behaviour. The reporting verb "said" should be in the past tense, "told".
• The teacher said to the students that he will not be tolerating such behaviour. This is the same as the second option, but it is repeated.