语法填空。
My name is Wang Kun. Since middle school, my sister and I 1_____ (dream) about 2_____ (take) a great
bike trip. When we graduated from college, we finally got the chance to do it. It 3_____ my sister 4_____ first
had the idea to cycle along 5_____ Mekong River from 6____ it begins to where it ends. The Dai live near the
Lancang River, the Chinese part of the river that 7_____ (call) the Mekong River in other countries. Wang Wei
soon got them interested in cycling too. She insisted that we 8_____ (find) the source of the river. She gave
me a 9_____ (determine) look. Once She has made up her mind, nothing can change it. Finally, I had to give
10_____.
