—When ____ the next train leave for Boston,please?—Usually at 13:15 but because of a small accident on the line,it ____ at 13:45.A.dose; is going to start B.will; startsC.will; is to start D.dose; will start第一个空和第二个空问什么？谢谢！！
Though _____(suffer) such a heavy loss, the boss didn’t lose the courage to go on with his business.答案是 having suffered过去分词不是表示被动么，主语是 boss 是人，为什么还用过去分词 不用 suffering 呢?另外 还加了个 having 是什么意思呢?
Once on the boat, they were taken below and their chains were fixed to two bars that ran the lenght of the ship.句中，were fixed to two bars中为什么用介词to呢？如何理解这里的to?
...rict discipline is sometimes important,but it would have an adverse impact on children’s problem-solving abilities.
这个句子中的为什么要使用would呢？如果去掉或者换成别的情态动词可不可以呢？
would除了表示will的过去式，表示意愿之外还有别的用法...
The second tack of their argument is to compare the sort of effect seen
in biology-based models of where malaria might spread with both models of and
data on the effects direct intervention against the disease can have.麻烦老师帮忙分析一下句子，特别是这里面的of where, of加在这...
...a thicker, stiffer hose that was difficult to
manipulate, Mary relied more on her trunk. For the purpose of showering Ms.
Kaufmann said, Mary seemed to understand that the bigger, heavier hose was
"just not as useful."这句话最后的as useful是不是有省略？这里的just什么意思？
... children? Do you never think of them?""No.""I wish you weren't so damned monosyllabic. Have you never had a moment's regret for all the unhappiness you caused them?"His lips broke into a smile, and he shook his head."I should have thought sometimes you couldn't help thinking of the past. I don't me...
...ng young children. 用识字卡教幼儿非常有用。Her three-year-old son is
learning math with flash cards. 她三岁的儿子在用教学卡学数学。Naomi has been using flash
cards to increase her vocabulary. 尚美一直在用抽认卡增加词汇量。Those flash cards have a
questionon...
To ensure its grip on the message put out by its domestic and international broading service,including CGTN,the government consolidated them in March into a single media group as known Voice of China (its name in English perhaps consciously echoing that of the American govrenment`s broading service,...