"我也去"写成 I go to，老师就圈了。正确是 I go too。to / too / two 三个词读音差不多，写法意思全不同。
to
两个用途：
- 介词，表方向、到：go to school，from morning to night
- 不定式符号，后面接动词：want to go，need to eat
too
两个意思：
- 也（句末）：I like it, too.
- 太……（修饰形容词）：It's too hot. 太热了。
two
就是数字"二"：
- I have two cats.
判断：方向/不定式用 to，"也/太"用 too，数字二用 two。
there / their / they're
- there 那里：over there
- their 他们的：their books
- they're = they are：They're happy.
wear / where / we're
- wear 穿：wear a coat
- where 哪里：Where are you?
- we're = we are：We're coming.
its / it's
上一篇刚讲过，复习一遍：its 它的，it's = it is。
一句口诀：同音词别靠耳朵，靠意思；写作文时慢半拍，把词拆开读一遍，错不了。
