vulnerable, accelerate, accustomed allege,

Hello! I would like to know if I'm using these words correctly!

1. I need to be careful to not be too direct when I talk to her, because she is vulnerable.

2. I accelerated my car, because I was pretty late.

「because」のほうは「as」よりもっと自然でしょう

3. I'm not accustomed to reading in English, so it takes ages for me to read a book.

4. There was noone next to me, last time I took a flight.

人々について話すと。「adjacent]をいいません。違いませんが、使いません。

5. Ｉ alleged that a member of the air company's staff lied to me.

自分のことについて話すと、「allege」といいません。「allege」の意味は誰かによると、これは本当かもしれません。でも、嘘かもしれません。

Japanese to Japanese Translator

I've just found a funny Japanese-to-Japanese translator on the Internet. Here is the translator: http://orikaeshi.com/ It's going viral now. It translates your Japanese sentence into Japanese via English, Dutch and Italian. For example, I've put the sentence '片づけなければなりません' meaning I must tidy it up, and I've got this: '終わり。', which means you've finished.