根据课文内容在每个空白处填入一个恰当的词。
Two men walked slowly, one after another, through the shallow water of a stream. 1 they could see were stones and earth. The 2 ran cold over their feet. They had blanket packs 3 their backs. Suddenly, the man who followed 4 over a stone. He hurt his foot badly and called: “Hey, Bill, I’ve hurt my foot.” Bill 5 straight on without looking back. The man was 6 in the empty land, but he was not lost. He knew the way to their camp, where he would find food and bullets. He struggled to his 7 and limped on. Bill would be waiting for him there, and 8 they would go south to the Hudson Bay Company. He had not eaten for days. Often he 9 to pick some small berries and put them into his 10. The berries were tasteless, and did not satisfy, but he knew he must eat them.