Помогите поставить глаголы в нужном времени. Модуль (Module) 3c № 4. ГДЗ Английский язык Spotlight 9 класс Ваулина.

Put the verbs in brackets into the past perfect or the past perfect continuous.
 
1       Tom was angry because he............... (miss) the
last train home.
2       Katie............. (only/work) in her new job for a
month when she got a promotion.
3       By the time we got home, everyone ....................
(eat) dinner.
4       Sarah was angry because she........... (wait) for
the bus for over an hour before it arrived.
5       Harry ...........  (dig) in the garden so he was
covered in mud.
6       Alice .............  (not/finish) her homework by
bedtime.
7       They............. (cook) for over three hours before
the guests arrived.
8       I......... (just/decide) to walk home when the
bus came along.