Which of the following sentences is correctly punctuated? i have taken notes on your book however i still have questions. i have taken notes on your book, however i still have questions. i have taken notes on your book; however, i still have questions. i have taken notes on your book however; i still have questions.

I have taken notes on you book, however i still have questions.

Explanation:

The more correctly form that i see is this form, the space betwween ideas is separetes for a virgule, however these other sentences are not separets, but only for ;  that is not necessary, the ideas are complementary.

i believe it is

1. 저는 사과를 머거요.

2. 너는 자야지.

3. 재석는 앉어 있었다.