关于英语的问题。。谢谢

Question

1.The old lady's hand shook frequently,She explained to her doctor__how___this shaking had begun half a year before,and__how__,,only because of this,she had been forced to give up her job.
请问空格的两个how，为什么要这样填？帮忙翻译和解释下，谢谢
2.__quiet student as he may be___,he talks a lot about his favourite singer after class.
空格中的倒装怎么解释呢？为什么这样？谢谢
3.all right
that's all right
that's right
alright.....等等要怎么区别呢？谢谢

Answer 1

1 这题我以前做过…汗…就是这老太太手抖得厉害，然后她就告诉医生这手是怎么从半年前开始抖的，并且她是如何仅仅因为这个病而被迫放弃她的工作的，错误的选项是不是what,when,that…

2 这个although省略后的倒装，原句是Although he may be a quiet student.省略Although后要倒装，倒装的结构为：形容词+名词（宾语）+as/though+主+谓。注意，倒装后冠词,就像原句中的“a”，一定要去掉！

3 all right 好的
that's all right 没关系
that's right 对的
alright a. 没关系的,没问题的
ad. (=all right)好吧

Answer 2

1. that is
that ridiculous

2. Though quiet student as he may be thought 他可能被认为是安静的学生

3. ……应试……啊……
all right 好的
that's all right 没关系
that's right 你说对了
alright.....好的