Text: you can download a japanese workbook for free! a different workbook is available for free each week.

Correct capitalization: You can download a Japanese workbook for free! A different workbook is available for free each week.

Text: it is also more reliable and responsive.

Correct capitalization: It is also more reliable and responsive.

Text: use the keyword th:94f8b697 to restrict your search to this thread.

Correct capitalization: Use the keyword th:94f8b697 to restrict your search to this thread.

Text: 29 i know him, because i am from him, and he sent me."

Correct capitalization:
29 I know him, because I am from him, and he sent me."