结束语

-In conclusion, I'd like to...

-I'd like to finish by...

-Finally...

-By way of conclusion...

-I hope I have made myself understood

-I hope you have found this useful

-I hope this has given you some idea/clear idea/an outline of...

-Let me end by saying...

-That, then was all I had to say on...

-That concludes our presentation...

-I hope I've managed to give you a clearer picture of...

-If there are any questions, I'd be delighted to...

-Thank you for your attention...

-Let's break for a coffee at this point

-I am afraid that the clock is against us, so we had better stop here

-You have been a very attentive audience---thank you