срочно помогите!! За правильность баллы надбавлю
Make up as many sentences as you can using
a) Past Indefinite or Past Perfect:
1. Он вернулся at 6 o'clock
by 6 o'clock
on Saturday
by Monday
at that time
2. Я закончил работу by that time
before you came
while you were away
b) Future Indefinite or Future Perfect:
1. Он вернется at 6 o'clock
by 6 o'clock
on Saturday
by Monday
2. Я закончу работу at that time
by that time
before you come
while you are away

a) 1. He came back at 6 o`clock.He had come back by 6 o`clock.He came back on Saturday.He had come back by Monday.He came back at that time.2. He had finished his work by that time.He had finished his work before you came.He finished his work while you were away.b) 1. He will come back at 6 o`clock.He will have come back by 6 o`clock.He will come back on Saturday.He will have come back by Monday.2. I will finish my work at that time.I will have finished my work by that time.I will have finished my work before you come.I will finish while you are away.