Question

6. I advise you        fruit that isn't ripe (eat)

我建议你不要吃还没熟的水果。

Answer 1

6. not to eat/shouldn't eat/not eat动词advise适用于两个结构advise sb. to do sth.和advise sb. + that从句。在后一个结构中，that引导的宾语从句中的谓语动词部分应为should do,should 可以省略。