按照课文内容填空。

    WangKun and his sister dreamed about 1_____ a great trip since middle school. After 2_____ from college,

they finally got a chance to make their dream come 3_____. His sister thought of the idea to cycle 4_____ the

Mekong River. They both bought expensive bikes. They also got their cousins 5_____ in cycling. WangWei

6_____ (stick) to organizing the trip properly. When she heard that the 7_____ of Mekong River is in Qinghai

Province, she wouldn't change her mind. She even felt e 8_____ when she knew that their journey would begin

at an 9_____ of more than 5,000 meters. Before the trip they found a large atlas in the library. F 10_____ the

atlas they knew clearly about the Mekong River.