Question

The traffic rules _ be followed (must /need )

Answer 1

Answer:

The traffic rules must be followed

Explanation: because we are sure about the thing that traffic rules must be followed and 1 more thing is there that if we use need the there must be to with it.

Answer 2

The traffic rules must be followed.

Explanation:

Because in the above sentence we are very sure about the work.

The traffic rule are very important while we are on the road, we must follow these rules.

The must is used to show the necessity of the work.

The traffic rule is essential for humans.