Question

4. Thomas Edison
(invent) the electric lamp in 1879.
5. It
(rain) when I left the house.
6. He
(study) hard these days.
O
7. She
(work) in the film industry for fifteen years by next year.
8. The patient
(die) before the doctor arrived.
9.1
(Do+not+meet) him yesterday.
10. By the time my friends arrive,
my homework.
11. While 1
my homework, the light went out.
12. Before I bought new boat,
(Visit) to boat show every day to see the newest models
131
(have) my camera for five years now.
14. Salvi
(leave) the home an hour ago.
15. By the time I see you next,
(submit) my article.

Answer 1

Answer:

4.Invented

5.was raining

6.is studying

7.will have been ( future present participle

8.died

9.I did not met

10 .By the time my friends arrived

11. While i was doing my

12. I have been visiting to boat

13.I will have been having my camera

14.left

15.i will have been submitted.