satgrammar几道
Determinedtomakeanameforherselfasawriterofshortstories,Helenneversubmitsanythingtoaneditoruntilrevisingitseveraltimes.
答案说是revising错了--为什么难道until后面不能直接加动名词?句意没错啊
2‘Athickgrouthofsunflowersstandingtenfeettall,theirbrownheadsdroopedoverthefencewiththeweightoftheirseeds.
Athickgrouthofsunflowersstoodtenfeettall,theirbrownheadsdroopingoverthefencewiththeweightoftheirseeds.
这两个的区别是什么啊--不是都是sthdoing,sthdo.的形式吗--