воткните нужные слова в предложения:1)He was exhausted because he ... hard

Воткните нужные слова в предложения:

1)He was exhausted because he ... hard all day
A. worked
B. has been working
C. had been working
D. has worked
2)This time next Tuesday I ... to Rome
A. will fly
B. will be flying
C.will have flown
D. am going to fly
3)By the year 20550,sea pollution levels ...
A. will increase
B. are increasing
C. will be increasing
D. will have increased
4) He told me that he ... the next day
A. will have left
B. will leave
C. was leaving
D. leaves
5) If I ... athletics, I will become fit
A. take up
B. took up
C. had taken up
D. will take up
6)If I win the lottery, I ... a luxurious house
A. will buy
B. am buying
C. buy
D. would buy