Welcome to White Rabbit Japan!
This "Nihongo Power Drill: N1 Grammar" was produced for language learners who need more grammar practice. This workbook contains 30 lessons which can be completed in 10 minutes each. There are 580 problems in this workbook. 480 of them are using the same style as the new JLPT exam, and 100 focus on building up the strength of your grammar skill.
Please see the examples below and to the left.