Question

The children-------in the park for a long time.(play)

Answer 1

Answer:

The children have been playing in the park for a long time.

Explanation:

The children-------in the park for a long time.

Now here, children have started playing already and going on since a long time.

So here, it will be:

The children have been playing in the park for a long time.

Hope this helps........

:)