请教三道SAT语法题1.TheStegosaurus,(plant-eatingdinosaurs)with(protective)bonyplantsandtailspikes,was(oncecommonin)(whatisnow)Colorado.为什么不选B改为Protectively呢?2.Anamateur(herself),theaccountantoffered(tohelp)

Question

请教三道SAT语法题
1.The Stegosaurus,(plant-eating dinosaurs) with (protective) bony plants and tail spikes,was (once common in) (what is now) Colorado.为什么不选B改为Protectively呢?
2.An amateur (herself),the accountant offered (to help) the artist with his business accounts,complicated (as they were) (by) his unusual system of record keeping.
可是为什么我觉得应该把by改成as,
3.Some experts say (that of all) the musical forms that constituted African music in the second (half of the) twentieth century,Congolese rumba and its rambuctious offsprings,soukous,(were) the (more) influential.

Answer 1

1 protective) bony plants 形容词作定语
2 (by) his unusual ：his,应为her,指 An amateur ,by指帮助的方式,不用with,避免与前一with重复
3 the most
topics:education,public policy,clear communication.汉语思维,such as
2.If the survey results confirm our assumptions,we will change our advertising.一般条件句,不是虚拟语气