B. Tom fell down from the tree,_breaking_____ (前面是逗号,没有主语,此处作 状语)one of his legs.
如果是 Tom fell down from the tree and he broke one of his legs.(并列句就用broke ,前后时态一致)
B. Tom fell down from the tree,_breaking_____ (前面是逗号,没有主语,此处作 状语)one of his legs.
如果是 Tom fell down from the tree and he broke one of his legs.(并列句就用broke ,前后时态一致)