英语改错,1,you can rely on that we will give you an immediate an

英语改错,1,you can rely on that we will give you an immediate answer.
2,the old woman was too excited when seeing her son who she had thought had already been murdered that she couldn't say a word.
3,Mr.white ,the head of the company,will attend the meeting which will take place in Canada.

好久没做题了,试一下吧
1.第一句是虚拟语气,所以应该改为.that we would give you……
2.第二句时态和句型有问题,应该改为 the old woman was so excited when seeing her son who she thought had been murdered that she couldn't say a word.（或者改为too..to句型也可以）
3.用词有误,应该改为.will attend the meeting witch will be hold in Canada.