.---Is it _________ our school? ---No. it’s about three kilometers ________.

At the foot of the hill, you could hear nothing but the _____of the running water.

The students are talking about ______ holiday plans happily.

--- Jack, you look tired today. What’s wrong? --- I was ____ busy ____ I didn’t go to bed until midnight yesterday.

—_____will you stay here? 　　　 —Until tomorrow afternoon．