At the foot of the hill you could hear nothing but the ________ of the running water.
---- ________your sister__________?----- She is friendly and helpful.
The twins are talking about their trip plan. It’s fun to _________ them.
When the wonderful news_________, we all got very excited.
Of the three foreigners, one is from London, ________ two are from New York.
The buildings in this city are not as tall as _________ in my hometown.