4класс wb, afnasyeva, vereshagina. не могу понять на странице 29 №3: write the three forms of verbs. divide them into three groups ([t], [d], [id]). даны слова: to laugh, to study, to join, to count, to work, to lock, to shout, to describe, to happen, to believe, to start. [t]: to laugh - laughed - laughed. (две строки ниже) [d]: to study - studied - studied. (три строки ниже) [id]: to count - counted - counted (две строки ниже)