You're talking about your driver's license with your office assistant because you need to rent a car on your next business trip. It's old, so you'll have to get a new one soon. This is what you tell your assistant.
I have to renew it soon. It expires in June.
deadline, expiration, license, renew, time 
You're having a meeting about a project that you're in charge of at work. You've given a lot of information and detail about the project to the meeting participants. Now you want to make sure that everyone understands clearly what you want them to do, so you say:
What this all means for you guys is that everything needs to be in by Wednesday.
You are responsible for processing employees' reimbursement requests at your company. You need for everyone to submit their requests by Dec. 8th, but every month some people try to send theirs after the due date. You don't want them to do this, so in an e-mail you remind everyone of the due date and then write:
No exceptions!
deadline, exceptions, reimbursement, requests, submit 
You are responsible for processing employees' reimbursement requests at your company. You need for everyone to send their requests to you by December 8th. You write an e-mail to all the employees. After the introduction, it says:
All reimbursement requests must be submitted by Dec. 8th.
accounting, deadline, email, formal, must, reimbursement, requests, submit, work, written English You're working on a project at work to create a mobile phone application. You're making a presentation on how the work for the application is going. After explaining each of the steps you're going to do, you want to tell everyone when it will be finished. You say:
The ultimate goal is to have it available to the public by the end of the year.
deadline, goal, presentation, work A coworker from another department in your company has complained because people on your team don't tell him about changes that you've made to a document that is shared between your groups. You're explaining to another team member that he wants you to tell him about new changes:
Albert is asking us to notify him of any revisions we make to the extensions sheet.
deadline, document, notification, progressive aspect, request, revisions, work Your sister is going to come visit you but hasn't bought her airplane tickets yet. She wants to get the cheapest tickets possible. You just advised her that she ought to go ahead and book her flight soon. But now you're remembering that there are also good deals on plane tickets in the last few days before the flight. You say:
Although, on the other hand, you might be better off waiting until the last minute.
You have an important presentation for school that's due this week. You've been thinking and worrying about the presentation for 3 weeks. Now you're talking with your boyfriend, who you've spoken to about the presentation before.
I've had this presentation looming over me for weeks now.
In the example above, the speaker says "this presentation". Using "this" makes it seem like the speaker wants to continue talking about the presentation.
When something "looms" over you, it means that it's floating or hanging ominously. It feels threatening and makes you worry that something bad is going to happen. The best example of this is when dark clouds are floating in the sky. You can describe it this way if you write a story about a scene:
There were dark clouds looming overhead.
People also use "looming over" to talk about a bad event that they know is going to happen in the future:
My 40th birthday is looming right around the corner. I'm not looking forward to that!
You can use the phrase "for weeks now", "for two days now", "for 5 years now", and so on. When you use the word "now" after a length of time, it shows that you think this was a pretty long time. Not a really long time, but maybe longer than you expected. For example, if you're telling someone how long you've been studying English:
I've been studying it seriously for over three years now, but there are still little things that trip me up.
You babysit a couple's child. They are supposed to pay you at the beginning of each month, but they are always late every month. You're annoyed by it and angry at them. Now they are a week late on paying you, so you want to tell them to pay and show your anger. You say:
May I remind you that payment is due at the beginning of the month?
You rented a car. It was due to be returned by 6:00 on Sunday. You just barely returned it on time. You're telling your friend about returning the car at the last minute. To set up the story, you say:
I was supposed to bring it back by 6:00.
deadline, obligation, storytelling 