Помогите пожалуйста.
Complete the sentences using Past Perfect.
a) I went to bed because .....
b) My father caught cold because...
c) We went shopping because.....
4) They were tired because.....
5) He was late for the lessons because....
6) They couldn't enter the house because....

a) I went to bed because had caught cold. b) My father caught cold because had stayed outdoors. c) We went shopping because we had runn out of food. 4) They were tired because they had worked hard. 5) He was late for the lessons because he has misse the bus. 6) They couldn't enter the house because they had lost the key.