-i will be pleased to answer any questions you may have at the end of the presentation.

-please can you save your questions till the end.

-if you have any questions, i will be pleased to answer them at the end of the presentation.

-there will be time at the end of the presentation to answer your questions-so please feel free to ask me anything then.

-don't hesitate to interrupt if you have a question.

-please feel free to interrupt me at any time.

-please stop me if you have any questions.

-if you need clarification on any point, you're welcome to ask questions at any time.

-can i come back to that point later?

-i will be coming to that point in a minute.

-that's a tricky question.

-we will go into details later. but just to give you an idea of...

-i am afraid there's no easy answer to that one...

-yes, that's a very good point.

-perhaps we could leave that point until the questions at the end of the presentation

-i think i said that i would answer questions at the end of the presentation---perhaps you wouldn't mind waiting until then.

-i think we have time for just one more question

歡迎聽(tīng)眾(正式)

- welcome to our company

- i am pleased to be able to welcome you to our company...

- i'd like to thank you for coming.

- may i take this opportunity of thanking you for coming

歡迎聽(tīng)眾(非正式 )

- i'm glad you could all get here...

- i'm glad to see so many people here.

- it's great to be back here.

- hello again everybody. thank you for being on time/making the effort to come today.

- welcome to x part ii.