题目是一段语法填空题:When the first European ship arrived on Easter Island in 1722, all statues were stading there. Later more and more of them fell down as the years passed. No one knows _______ it happened. The most common idea is that the statues were pulled down in tribal warfare. But ...
It may issue detailed news releases amd find only small portions of them reported by the media;and media have the ability to be much more critical than a company would like.
At the front desk, a clerk said she saw a dog rush nervously out the front door a few hours ago.不是”rush out of : 冲出.....; go out of : 走出....“ 吗?这里怎么没用of ?什么情况下用或不用of ?
The researchers calculated that the stress-reducing effects of hugging
_____ about 32 percent of that beneficial effect.这一空的答案是 explained,我想请教一下为什么不能选 served 呢?我查了serve 有“提供;产生…效果”的意思呀。谢谢解答指教。