Выполним задание.
3 5
│ H
1 A L L H A L L O W S E V E
│ 4 W
2 F I R E W O R K V
│ │
По горизонтали:
- ALL HALLOWS EVE is on October 31st.
- FIREWORK day is on November 5th.
По вертикали:
- SAINT day is on March 17th.
- WEEK day is on January 1st.
- THANKSGIVING is on the 4th Thursday in November.
Ответ: Кроссворд заполнен.