Question

he falling off the bike，and his leg was broken错在哪

he falling off the bike，and his leg was broken错在哪为什么

Answer 1

1.选Afelloff是falloff的一般过去式意思：跌倒，向下倾斜，强调的是“跌落、从……掉下来”，后直接接宾语。Thegirlisfallingoffthebike.（=Thegirlisfallingdownfromthebike.）女孩正从自行车上摔下来。TheyspreadabignetincaseTomshouldfalloffthetreeandgethurt.他们张开一张大网以防汤姆从树上掉下来受伤。falldown倒塌，掉下，不强调落物的来处2.选Cget+sth.+done使某事被做，而这里的cut的被动形式还是cut，所以选C　YoumustgetyourhomeworkdonebeforeyouwatchTV.你看电视前务必把家庭作业完成。You'dbettergoandgetyourhaircut.你最好去理个发。

Answer 2

He fell off the bike，and his leg was broken.
he falling off the bike 没有谓语，句子不完整。后半句用and连接，是完整的句子。
更为简洁规范的表达应为：He fell off the bike, and broke his leg.

Answer 3

he fell off his bike, and his leg was borke.

追问

为什么不能用falling

追答

过去式，而且要做谓语，falling不能做谓语
对了，刚回答的最后一个单词是broke

Answer 4

He fell off the bike,and his leg was broken