2、谁比David更强壮?是Gao Shan.Who's stronger than David? Gao Shan is.3、谁的铅笔更长,他的还是她的?我想是她的。Whose pencil is longer,his or hers?Hers is,I think.4、谁的苹果更重,你的姐姐的还是你的弟弟的? 我的弟弟的。Whose apples are heavier ,your sister or yo...