Question

which sentence contains a phrase that adds a specific detail about time?
my dog loves running around the park.
i lost my necklace on top of the hill.
the house next door to me is getting new windows.
for several months, my sister was addicted to playing tennis.

Explanation:

The phrase "For several months" in the last - sentence gives a specific time - related detail. The other sentences do not have any time - related phrases.

Answer:

For several months, my sister was addicted to playing tennis.