1) c2) a3) b4) b5) b6) c
shall-should must-had to will-would may-might can-could
today-that day last year-the year before yesterday-the day before tonight-that night tomorrow-the next day next year-the following year now-then this-that these-those here-there
1) My mother said that she had borrowed some books from the library the day before. 2) Helen said that her uncle would visit her the following day.