Sure, let's go through each sentence and conjugate the verbs correctly:

19. Miss Helen **will help** you as soon as she finishes that letter.
20. I **will wait** here until I come back tomorrow.
21. They **will not start** the match until the rain stops.
22. My father **has** now car fare; he saves enough money.
23. Minh **will visit** all his relatives before he joins the army.
24. I think the weather **will be** nice later.
25. She **does not get** married until she is 25 years old.
26. We **will discuss** our plans next week.
27. He thinks it **will rain** tonight.
28. Tom and Mary **leave** for London tomorrow.
29. He **will be** at home to work.
30. As soon as he finishes his work, he **will go** home.
31. We **will be** ready when she gets here.
32. When I see Tom tomorrow, I **will remind** him of that.
33. When we get home, we **will have** dinner.
34. She and her friends **feel** very happy if they win the match.
35. I think that the Take That concert **will be** very exciting.
36. If she revises for the exam, I’m sure she **will get** good results.
37. In future, I think humans **will have** a very different species.
38. Let’s leave very early. I know that we **will arrive** very quickly.
39. If we go to Paris, we **will take** lots of pictures.
40. My brother thinks it **will snow** tomorrow.
41. Oh dear! Hurry up or we **will be** late for work.
42. When we go home, we **will watch** TV. We don’t want to miss our favorite program.
43. I’m afraid they **will lose** the match tomorrow.
44. The train strike means that the meeting **will take** place at 9 o'clock.
45. “Go and tidy your room.”
46. She **will not go** to the beach.
47. If it rains, she **will not pass** the exam.
48. I am drinking to the party, would you like to come with me?
49. "Ok," I said, "I’ll help you the first, I’ll come with you."
50. Sapa **will stay** hot.

51. We **will travel** by train to Da Nang.

52. I **will not do** my homework.

53. She **will play** with her friend.

54. Minh **will not arrive** tomorrow.

55. We **will not go** fishing tomorrow morning.

56. **Will** your father **water** the flowers?

57. They **will meet** Sunday and **will go** fishing.

58. She **will come** home.

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1. Robots **will clean** our houses in the future.

2. Robots **will not look after** children in the future.

3. We **will travel** to the moon in the future.

4. We **will not use** telephones at home in the future.

5. People **will eat** more rice in the future.

6. They **will watch** cartoons on smart phones in the future.