They showed great interest in everything they sawthey visited the farm

It only ____ me half an hou to school every day last term.

Is that the small town you often talked about? —Right, just the one____ you know I used to work for years.

Students are required to go out in couples, especially in the evenings, with friends ______ theyget into trouble[ ]

How much will it cost my mother and me to go to Tianjin? — 300 yuan _____[ ]