ENGLISH SEARCH Problem set specializing in English grammar, suitable for advanced learning curricula Also compatible with original curricula using non-accredited textbooks Develop solid skills with a steady, step-by-step level increase Newly added summary tests allow you to test your skills with mixed problems 　We will take waterproof measures and ship in a cardboard envelope. ////////////////////////////////////////////////////////////////////////// 《 To Buyers 》 ① For those who wish for express shipping or are in a hurry, Please specify Japan Post's Letter Pack (delivery the next day to the day after the next day). Even in remote areas such as Hokkaido and Okinawa Prefecture, delivery is possible the next day to the day after the next day. Before pressing the 【Proceed to purchase】 button, Please let us know in the comment section "Letter Pack ○○○ desired" and we will adjust the total price accordingly. Letter Pack Light (plus 270 yen, delivered to the mailbox) Letter Pack Plus (plus 460 yen, direct hand delivery) We cannot accommodate express shipping if the price is changed after pressing the 【Proceed to purchase】 button. ② Immediate shipping... has a time range. In the case of nearby prefectures, Even if we ship today at 6 p.m., or tomorrow at 3 p.m. (21 hours later), the delivery date and time will be the same. We are judging and executing to deliver as soon as possible, so please rest assured. Except when purchasing using method ①, Please refrain from messages that particularly urge shipping. ③ We will not respond to any 【price negotiations】 at all, of course when purchasing one item, or when purchasing multiple items. We will not respond to comments asking for a price reduction. Please understand the above three points.