The meaning is strange when you ask if you know a book or toy... It sounds like "are you acquainted with this book?" which is just weird. It's not something that would be said too often. "Do you know about" is better, but still, "to know" is not

Everyone, please e-mail me at <email address removed by a mod. Please write it in your profile.> . Thank you! :D

I will certainly e-mail you, Ellie, though I must admit, I'm wondering what you need help with. ^^ I would love to learn Japanese, too. That would be great. What might be your e-mail addess?

Easy. Speak with a native speaker, and practice a lot.

A polite way is "Hello, I am _______. Pleased to meet you." That's polite enough for a job interview, and casual for meeting people.

Change "success" to "successful" and "could" to "can" and it's perfect.

It means that, during the week, the weather was better than it was before.

Yes, it would work.

A clause is basically a sentence without punctuation. It forms a complete thought. A "dependent clause" is a clause that needs another clause to form a complete thought. Example: Because my friend took the car, (dependent) we had to walk.

Quotations.