Ihad cleaned my shoes.now they are clean.-cделать отрицательную и вопросительную форму из этого предложения

I hadn't cleaned my shoes. Now they aren't clean. 
Have you cleaned your shoes? Are they clean?

I had not clean my shoes.had i cleaned my shoes?
now they are not clean
are they clean now?

A decade ago western civilisation entered the new era - era of information. New era creates new trends, and makes old habits die. In the 21st century sportsmanship business declines rapidly. If i were an investor I'd rather invest into profitable economic sectors such as drug trade or adult industry.  The only sport i would invest in is cybersport. Cybersport comprises the competitive play of video games. Other terms include competitive gaming, professional gaming, e-sport, and cybersport. The most common video game genres associated with electronic sports are real-time strategy (RTS), fighting, first-person shooter (FPS), massively-multiplayer online (MMOG), and racing. Games are played competitively at amateur, semi-professional and professional levels, and some games have organized competition in the form of leagues and tournaments. Events such as Major League Gaming (MLG), Global Starcraft II League (GSL), World Cyber Games (WCG), Dreamhack, and Intel Extreme Masters provide both real-time casting of streamed games, and cash prizes to the winners.

This is the only way to make profits in the modern sport.

 

1. I’m trying to study. I have been trying to study for the last hour, but something always seems to interrupt me. I think I’d better go to the library. 

2. The children are playing basketball right now. They have been playing for almost two hours. They must be getting tired. 

3. The telephone has rung four times in the last hour, and each time it has been for my roommate. 

4. The telephone has been ringing for almost a minute. Why doesn’t someone answer it? 

5. It has been raining all day. I wonder when it will stop. 

6. We have had three accidents so far this week. I wonder how many more we will have if you keep using the tools carelessly. 

7. We have been living here since last June. 

8. My little son is dirty from head to foot because he has been playing in the mud. 

9. What’s the matter? Your eyes are red and puffy. I hope you have not cried.  Oh, now I understand. You have been peeling some onions. 

10. Hello, Rob. I’m happy to see you again. I haven't seen  you for weeks. What have you been doing lately? 

11. I haven't been able to reach my boss on the phone yet. I have been trying for the last twenty minutes, but the line has been busy. 

12. We have had three major snowstorms so far this winter. I wonder how many more we will have. 

13. I have written to them three times, but I still haven’t received a reply. 

14. A: Dr. Harrison is a good teacher. How long has he been teaching at the university? B: He has been teaching here for almost 25 years. 15. A: What are you going to order for dinner? B: Well, I have had pizza. So I think, I’ll order that. 

16. My uncle has been painting the outside of his house for three weeks and he’s still not finished. 

17. The Smiths are presently in Tunisia. They have been travelling throughout North Africa since the middle of May. They’ll return home in another month. 

C) Use THE PRESENT PERFECT TENSE or THE PRESENT PERFECT CONTINUOUS  to fill in the blanks: 

1. I’m tired. We have been walking for over an hour. Let’s stop and rest for a while. 

2. The zoo isn’t far from here. I have walked there many times. 

3. I have written to my friends at least a dozen letters since I left home and came home. 

4. Sally is writing a letter to her boyfriend. She has been writing  it since she got home from class. It’s going to be a long letter. 

5. The telephone has rung four times in the last hour, and each time it has been for my roommate. 

6. The telephone has been ringing for almost a minute.  Why doesn’t someone answer it? 

7. She is 80 and she has never read a book in her life. 

8. The secretary is very tired. She has been typing all morning. 

9. Tom is reading a book. He started two hours ago and he is on page 53. He has been reading for two hours. 

10. Hello! I have been cleaning the windows. So far I have cleaned five of them and there are two more to do. 

11. My grandfather died 30 years ago.  I have never met him. 

12. A: Is your father at home? 

B: No, I’m afraid he has gone out. 

A: When exactly did he go out?

B: About ten minutes ago.

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