一道SAT语法题,谢谢啦!In Germany,foresters discovered that trees killed by acid rian had begun to die four years (earlier without any signs of disease shown then.)请问括号里的为什么错了?

一道SAT语法题,谢谢啦!In Germany,foresters discovered that trees killed by acid rian had begun to die four years (earlier without any signs of disease shown then.)请问括号里的为什么错了? 一道SAT OC 语法题> 一道sat的语法题,解释 一道sat上的语法题 一道SAT语法题.B选项怎么改? 一道填空题谢谢啦 sat语法题ip 【SAT语法】一道SAT的IE语法题(Centuries ago), the Greek physician Hippocrates (advocated) collecting data (from) patients in order (to be drawing) conclusionand diagnose diseases. (No error.)Q：错误的应该是哪一个?是(from)还是(to 一道sat语法为什么错了 一道SAT语法的IP题,大家只需帮我看看这两个表达有何不同即可啦：When the members of a debate team practice by citing facts in support of an argument or counterargument,they (are literally) gathering related pieces of informatio SAT 07年10月一道语法题As a adult, male golden silk spider live not in webs, 为什么live not可以算是对的? SAT语法题,谢谢啦!Though I am acquainted with Mr.Bartholomew and have long known of his interest in the painting,that he has gone to such lengths (to obtain it astonishes )me.请问维护森么括号里的没错,为什么不写to astonish. 一道简单的题. 谢谢老师啦^^*～ sat 的一道writing的题 帮忙解释一下 谢谢 SAT语法几道语法题 SAT语法句子改善题 一道SAT 的题 一道SAT 的题