根据下列句子的汉语意思和英文提示，完成句子；每空一词。
①水太脏，我们不能饮用。
The water was dirty drink.
②这部电影太滑稽了，它告诫人们不要抽烟。
This film is really, which advises people to .
③我们必须保护好这些树木，让它们不遭火灾。它们已有三百年历史了。
We must the trees fire. They are three years .
④她在中国所见到的情景使她感到惊奇。
She at she in China.
⑤我总是认为学好英语很重要。
I always think important English .
