towards their camp, nearly ten kilometers __16__.

　　Simon had __17__ the camp at the foot of the mountain. He thought that Joe must be __18__， but he didn't want to leave __19__. Three days later, in the middle of the night, he heard Joe's voice. He couldn't __20__ it. Joe was there, a few meters from their tent, still alive.

　　1．A.hurriedly B．carefully

　　C．successfully D．early

　　2．A.difficult B．similar

　　C．special D. normal

　　3．A.climbed B．worked

　　C．rested D．continued

　　4．A.unwillingly B．safely

　　C．slowly D．regretfully

　　5．A.fortune B．time

　　C．health D．life

　　6．A.lay B．settled

　　C．went D．looked

　　7．A.damage B．storm

　　C．change D．trouble

　　8．A.by mistake B．by chance

　　C．by choice D．by luck

　　9．A.unnecessary B．practical

　　C．important D．impossible

　　10．A.height B．weight

C．strength D．equipment