![ThisweekendBobandhisfriendswenttoamountain．Whentheygot...]( "ThisweekendBobandhisfriendswenttoamountain．Whentheygot...")
- 問題詳情： ThisweekendBobandhisfriendswenttoamountain．Whentheygotthere，theyputuptheirtents(帳篷)andthenrodetheirhorsestotheforesttoseehowthetreesweregrowing． Intheafternoon，whentheyweregoingback，itstartedtosnow．Tenminuteslater,theycouldn’tfindtheroad．Bobkn...
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