Sure! Here are sentences using each of the 50 idioms:
1. A blessing in disguise – Losing that job was a blessing in disguise; it pushed me to pursue my passion.
2. A dime a dozen – Used books are a dime a dozen at the local bookstore.
3. Beat around the bush – Stop beating around the bush and tell me what happened.
4. Better late than never – She finally turned in her assignment, better late than never.
5. Bite the bullet – I hate going to the dentist, but I’ll have to bite the bullet and make an appointment.
6. Break the ice – He told a joke to break the ice at the meeting.
7. Call it a day – Let’s call it a day and finish this tomorrow.
8. Cut corners – Don’t cut corners on this project; quality matters.
9. Cut somebody some slack – Cut him some slack; he’s new to the job.
10. Get out of hand – The party got out of hand and the police had to be called.
11. Get something out of your system – I needed to get traveling out of my system before settling down.
12. Get your act together – You need to get your act together and start meeting deadlines.
13. Give someone the benefit of the doubt – I gave her the benefit of the doubt because she’s usually reliable.
14. Go back to the drawing board – The plan didn’t work, so we have to go back to the drawing board.
15. Hang in there – Hang in there; things will get better soon.
16. Hit the sack – I’m exhausted; I’m going to hit the sack.
17. It’s not rocket science – Just follow the instructions; it’s not rocket science.
18. Let someone off the hook – He made a mistake, but his boss let him off the hook.
19. Make a long story short – To make a long story short, we got lost and missed the flight.
20. Miss the boat – I didn’t apply in time, so I missed the boat on that job.
21. No pain, no gain – You have to exercise regularly; no pain, no gain.
22. On the ball – She’s really on the ball and always finishes her work on time.
23. Pull someone’s leg – Don’t take him seriously; he’s just pulling your leg.
24. Pull yourself together – You need to pull yourself together and face the situation.
25. So far so good – The project is challenging, but so far so good.
26. Speak of the devil – Speak of the devil, here comes John now.
27. Spill the beans – Who’s going to spill the beans about the surprise party?
28. The best of both worlds – Working from home gives me the best of both worlds: flexibility and productivity.
29. The last straw – Losing the keys was the last straw; I’ve had a terrible day.
30. Time flies when you’re having fun – We were having a great time, and before we knew it, it was midnight; time flies when you’re having fun.
31. Under the weather – I’m feeling a bit under the weather today, so I’m staying home.
32. We'll cross that bridge when we come to it – If we run out of money, we’ll cross that bridge when we come to it.
33. Wrap your head around something – It took me a while to wrap my head around the new software.
34. You can say that again – “This weather is awful.” “You can say that again.”
35. Your guess is as good as mine – When it comes to quantum physics, your guess is as good as mine.
36. Burn the midnight oil – I had to burn the midnight oil to finish the project on time.
37. Caught between a rock and a hard place – She was caught between a rock and a hard place, having to choose between her job and her family.
38. Costs an arm and a leg – The new phone costs an arm and a leg.
39. Cry over spilt milk – There’s no use crying over spilt milk; just clean it up.
40. Curiosity killed the cat – You shouldn’t ask so many questions; curiosity killed the cat.
41. Hit the nail on the head – You hit the nail on the head with your analysis.