B4

Halloween is one of the world’s oldest holidays.
(степень сравнения)

OLD

B5

Every kid is looking forward to the 31st of October. Little boys magically turn into vampires and little girls into fairies.
(present continuous, т.к. ждёт сейчас, в данный момент.)

LOOK 

B6

Halloween’s origins go all the way back to ancient times with the Celtic festival of Samhain, marking the end of summer and harvest time and the beginning of dark, cold winter.
(завершающийокончаниелета)

MARK

B7

During the festivities, poor citizens asked for food and were given cakes in return for their promise to pray for the family’s dead relatives.
(past simple passive, т.к. им давали сладкие пироги, а не они давали.
Это было в прошлом.)

GIVE

B8

Today Halloween is celebrated in several countries around the globe.
(present simple passive, т.к. это общее утверждение. Он празднуется, а не он сам что-то празднует)

CELEBRATE 

B9

A traditional food eaten on Halloween is ‘barnbrack’, which is a kind of fruitcake. People usually bake a muslin-wrapped treat inside the cake, which can foretell the eater’s future.
(едока,’показывает принадлежность предмета)

EATER

B10

For example, if a ring is found in the cake, the person will get married soon.
(1й conditional)

GET