英语改错问题。

Question

She spent a lot of spare time help us with our english,这句话哪里错，为啥错？

Answer 1

help应该改为helping
因为spend some time (in)doing something
所以spent后面的动词要用ing形式的

Answer 2

help应改为helping.
spend time in(In可省略） doing something，
或者spend time on something.

Answer 3

应该是：
She spent a lot of spare time helping us with our English.

spend...(in)doing，是固定用法

Answer 4

去掉have
比改成It
has
been
的意思跟原句的意思更接近

Answer 5

主句用这两种都可以
但It's更常用
而since从句应用一般过去式