Answer:
1. The train arrives at 12:30.
2. We are going to have dinner at a seaside restaurant on Sunday.
3. It will snow in Brighton tomorrow evening. (or is going to snow)
4. On Friday at 8 o’clock I am meeting my friend. (or am going to meet)
5. Paul is flying to London on Monday morning.
6. Wait! I will drive you to the station.
7. The English lesson starts at 8:45.
8. Are you still writing your essay? If you finish by 4pm, we can go for a walk. 9. I am going to see my mother in April.
10. Look at the clouds – it is going to rain in a few minutes. (or will rain)
11. When they get married in March, they will have been together for six years.
12. You’re carrying too much. I will open the door for you.
13. Do you think the teacher will have marked our homework by Monday morning?
14. When I see you tomorrow, I will show you my new book.
15. After you take a nap, you will feel a lot better.
16. I’m sorry but you need to stay in the office until you finish your work.
17. I will buy the cigarettes from the corner shop when it opens.
18. I will let you know the second the builders finish decorating.
19. Before we start our lesson, we are going to have a review. (or will have)
20. We will wait in the shelter until the bus comes.
21. I’m very sorry Dr. Jones won’t back in the clinic until 2pm.
Explanation:
The English language offers different possibilities to speak about the future. The choice depends on the meaning and intention of the sentence.
These forms are the most common:
1. Although we use the Present simple to express actions in present, we can use it to express the future when we talk about timetables, schedules, etc.
e.g. The train arrives at 12:30.
2. When we talk about future actions in the present, we will use the construction to be going to:
e.g. I am going to see my mother in April.
3. When we talk about some fixed arrangements or appointments in the future, arranged before the present time, we will use the Present continuous:
e.g. Paul is flying to London on Monday morning.
4. We use the will + infinitive form to express certainty, habitual characteristics, willingness, and instant decisions:
certainty: e.g. It will snow in Brighton tomorrow evening
habitual characteristic: e.g. We will wait in the shelter until the bus comes.
willingness: e.g. You’re carrying too much. I will open the door for you.
instant decisions: e.g. Wait! I will drive you to the station.
5. We use the will + be + -ing form to a situation that began before a future time point and continuing through that time point:
e.g. When you get off the train, I will be waiting for you by the ticket machine.
6. We use the will + have + past participle form to talk about a future action completed before a later future time:
e.g. When they get married in March, they will have been together for six years.
