Ответ:

a) Speaker didn't know that a friend's exam result is bad.

b) Speaker didn't understand why there aren't any buses.

c) Speaker did lie in bed at night and can hear voices.

d) Speaker did have a ticket for a really good concert.

e) Speaker did make a birthday cake for a friend who won't like it.

Цифр нет, потому что нету ПРОСЛУШИВАНИЯ.

Надеюсь, я тебе помог!)