Think big 1, student's book and workbook, M Howell S., Kester-Dodgson L., Caroti P.
4. Ascolta la filastrocca. Poi recitala.
Thirty days has September, April, June, and November; February has twenty-eight alone, All the rest have thirty-one, Except for leap year: that's the time When Februarys days are twenty-nine.