...析一下：We required that he ( ) sorry to his mum, but he insisted that it ( ) his fault.A. said; wasn't B. say; wasn'tC. says; wasn'tD. said; shouldn't be 答案是B。我想知道的是，假如国内考试允许接受非正式语体使用陈述语气谓语形式的话...
D. Vitamin C is unusual in that it is required in the diets of humans and other primates, but only of a few other animals.but only of a few other animals.是什么成分？
...arried women employed outside the home in the 20th century had less to do with the mechanization of housework and an increase in leisure time for these women than it did with their own economic necessity and with high marriage rates that shrank the available pool of single women workers, previously,...
...not sufficient jobs in the world-saving fields,but in the current slowdown it has become evident that there never are enough promising jobs,presumably never will be,that require a higher education " 我想问的是，最后一句话为什么是用"that"而不是"which"，不是非限制定语从...
1）He was
flushed with excitement at the
thought. 他想到这就激动得满脸通红。2）The dog
leapt and wagged its tail in excitement
. 狗兴奋得摇着尾巴跳来跳去。3）In her excitement she
dropped her glass. 她一激动把杯子摔了。请教老师：句1)
with excitement, 句2...
...arrived on time. 他说他会迟到，但他却准时到了。I’m afraid it’s next door to impossible that we’ll be there on time. 看来我们几乎不可能准时赶到了。We can finish this job on time if everyone does his bit. 如果每一个人都尽自己的本分，我们就能按时...
When burning occurs, it prevents competition among plant species from progressing to the point where some species exclude others, reducing the overall diversity of the ecosystem.(1)这句话中prevents competition among plant species from progressing to the point是不是倒装？正常语序是不...
A: How was your last vacation?B: It was great.A:______?（此横线处必须是现在完成时吗？）B : I have been to Beijing .(觉得此处有必要现在完成时吗？一般过去时是不是更好？）A: ______?(难道此处必须是现在完成时吗？）B: For 10 days.A: Have you been to...
She found it hard to sit still. 她觉得很难安坐在那里。She wandered round all morning, unable to sit still. 她一上午都在四处闲逛，坐不住。 He was unable to sit still for longer than a few
minutes. 他连几分钟都坐不住。上面句子中的 sit still 是什...
It's a four-hour flight form phoenix to seattle, another hour in a small plane up to Port Angeles,and then an hour drive back down to Forks.感觉上a four-hour flight、another hour、an hour drive是三个并列的表语，有迷惑性的是an hour drive back down to Forks的drive是动词往...