跪求各位英语达人帮忙找出下列句子的错误

Question

1.The sun gives off light and warmth,that makes it possible for plants to grow.2.His dog,that was now very old,became ill and died.3.I have two sisters,both of them are doctors.4.We are going to visit the school where your brother works there.5.That is the way which they work.

Answer 1

1.The sun gives off light and warmth, which makes it possible for plants to grow. （前面有逗号隔开，用which)2.His dog,that was now very old,became ill and dead. （become 后面接形容词）3.I have two sisters,both of them are doctor. （医生，不用复数）4.We are going to visit the school where your brother works (there 不能再出现）5.That is the way that they work. (that 也可以省略掉）

Answer 2

1和2都是非限制性定语从句，先行词必须用which而不能用that ,3把them改为whom,4去掉there , 5去掉which

Answer 3

The sun( gives out) /(fell) ill and died/第三句没错／there去掉／work后面加in