I have smoe english question

1.My parents likes eating hamburgers
Ans. My parents (like) eating hamburgers. ~ because parent(s)係 眾數,so個 (v.動詞 )follow 個 唔可以+s

2.Mary have been to Japan before.
Ans. Mary (has) been to Japan before. ~because Mary 係單數so 個(v.動詞 )follow 個名詞唔可以係have

3.They has been to USA before
Ans.They (have) been to USA before ~如上,不過相反

4.Ten years ago, she was small. Now, she was big.
Ans.Ten years ago, she was small. Now, she (is) big.because of NOW(現在) SO唔可以USE PAST TENSE

5.I like eat chocolate.
Ans.I like (to) eat chocolate.because like 要to ,不過如果你change eat 去eating ,你個sentence 就correct.

6.I hate stand on the bus.
Ans.I hate stand(ing) on the bus./I hate (to) stand on the bus. 同like 一樣

7.I should not talking loudly in the library.
Ans.I should not(talk) loudly in the library. because not 後面唔可以use ing form

8.You must listening to your teachers.
Ans.You must (listen) to your teachers. because must 後面一定use b.f.(bareinfinative)