Что такое времена ( пресент симпл и т. д) в языке? как их использовать?

Было бы проще, конечно, если бы Вы привели пример (ведь в задании сказано: ДИАЛОГ В УПРАЖНЕНИИ ВАМ), но я попробую и без этого составить. Допустим:

Student A: Hey! Do you want to go out for a walk in the mountains at the weekend with me? It will be awesome!

Student B: I doubt that I will like it...  

Student A: Okay ... What would you like to do on the weekend?

Student B: I would rather stay at home. I would watch a film and then have dinner.

Student A: That sounds boring.

Student B: I would like to watch a horror film and eat pizza. Are you sure this sounds boring?

Student A: I change my mind! That sounds cool. Can I join you?

Student B: Yes of course. See you at the weekend!

1. Jane ( must be ) be strong. She can carry heavy weight.

2. he left the room without ( saying) goodbye

3. that girl ( looking ) at the pictture seems sad.

4. 0- article j. life is beautiful.

5. The sun sets ( near ) to the horizon.

6. At 7 o'clock I was ( waiting ) for Nick at the station.

7. The train ( has crushed) this afternoon.

8. This time next week I will ( be swimming ) in the sea.

9. the teacher ( cancelled ) the lesson and I ( was not asked ).

10. He ( may )be clever, but he doesn't make smart choices.

11. You ( mustn't ) open the door before the train gets into the station. It is dangerous!

12. Jane failed ( to have made ) a good impession.

13. The essay is ( unnecessaryly ) lenghty. You should make it shorter.

14. It is quarter ( to ) 5.