请教一道SAT的语法IS问题Having been a victim of malicious rumors,Helen purposely avoided gossips.划线部分是前半个分句,答案里有一个是开头加了一个because,为什么不选加because的而要选原句?

请教一道SAT的语法IS问题Having been a victim of malicious rumors,Helen purposely avoided gossips.划线部分是前半个分句,答案里有一个是开头加了一个because,为什么不选加because的而要选原句? 一道sat 语法in addition to having a theoretical understanding of disease ,medical students must experience in treating patients if he or she is to learn to diagnose illness accurately.为什么he or she is 是错的?求翻译 请教一道SAT数学题~~~~~ 一道sat的语法题,解释 一道sat上的语法题 grammar,语法问题,请教分析一下此题目!You should be hurry. The ( ) water is cooling down.选项: a、boiling b、boiled c、being boiling d、having boiled 一道SAT OC 语法题> SAT的语法 请教一道GMAT语法题 一道SAT语法问题请教（有关may的过去式）Pictures of vipers drawn on the walls of caves suggest that prehistoric hunters snake charms to bring good luck.为划线处.这个划线处是对的.我的问题是：此处的may用来指prehis 请教一道托业语法题Money for two new full-time employees____into the budget for the next fiscal year.（A)was figure (B)is figuring (C)been figured (D)having figured答案是什么?为什么?谢谢了~A是was 请教一道SAT语法题The Roman poet Virgil is highly esteemed today for his epic poem,The Aeneid,yet on his deathbed he himself sought to prevent its publication on the grounds (of not being) sufficiently polished.请问括号内的怎么改 感 请教一道电工学的数字电路问题, 请教一道高斯定理的问题 一道sat语法为什么错了 请教英语介词at in 的用法I was having dinner (at) a restaurant.He worked (in) a lawer's offive years ago,but he is now working (at) a bank.sat (at) the same table. sha admitted having stolen the money的语法问题语法是不是有错,having stolen 有这种时态吗 SAT 2006.1真题语法问题有一道题语法题感觉有点怪(括号表示可能有错的地方):(Not many) authours (have described) the effects of enivironmental pollution (as effective as) Rachel Carson,whose work is still (a model for) nature