急啊：英语选择题,关于名词所有格和复合不定代词(需解释，太谢谢了)

Question

题:1.My mother is a good ____ . She ____ some chicken yesterday.A.cooker ,cooked B.cook,cooked C.cook,cooks D.cooker,cooks2.My parents____ fine .What about your family?A.both are B.all are C.are all D.are both(请问both are和are both有什么区别，all are和are all有什么区别？ )3. _____of the shoes in the shop were the right size .They were either too big or too small.A.Both B.Neither C.None D.All 急需要解释，谢谢．

Answer 1

B 厨师是cook 加er是厨具 后面过去时 D 二者 用both
有both are 和are both两种说法,
both are中的both是代词,代替上文的人或事物,如:
The answers are 4 and -4. Both are right.答案是4和-4,两个够对.

are both中both也是代词,不过,它是主语的同位语,如:
Jim and Tom are both out. Jim和Tom都外出了.
最后题选D 3者以上 否定用none

Answer 2

1.B cook作为名词厨师”，动词“烹饪” ，yesterday昨天用过去式2.D 不定代词both两者都 all三者或三者以上，放在be动词后行为动词前，父母那是两个人所以用both,3.D They were either too big or too small.它们要么太大要么太小，说明鞋码都不对，所以_____of the shoes in the shop were the right size .表示的是否定的意义，“一个都不……"用none, neither用于两者中的任一否定