Look at the words with big letters. Which of them are correct, and which are incorrect? Correct the incorrect expressions.

1. I hope I'LL EARN so much money by the time I'm 40 that I WON'T NEED TO WORK ANYMORE.
2. This time next week, you ARE GOING TO GIVE our presentation about climate change but you WON'T HAVE FINISHED yet!
3. Some scientists think that by the end of the twenty-first century we WILL BE DISCOVERING a cure to many serious illnesses so probably we ARE GOING TO LIVE a lot longer.
4. I'm certain most people in the future WILL HAVE DRIVEN electric cars. I just hope it WON'T BE too late for the environment.
5. By six o'clock, they WILL BE WORKING FOR twenty-four hours non-stop to clear up the damage caused by the flood. Extra help IS CERTAIN TO ARRIVE soon.