楼上用中文回答的，我就用英文吧，可以让你双向选择嘛。1.He is alone on aBoeing 747.2.He is going to another country to go to school.3.He didn't feelsafraid, but worried.But finally, he thunk he must be brave . 4.He worried what his new life will be like in the future.5.7 hours .
