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 So before I go any further I want to thank you very much for inviting me to __________ this important conference.

A. participate in       B. join to                  C. take part     D. attend to

So before I go any further I want to thank you very much for inviting me to __________ this important conference.

A. participate in                    B. join to        C. take part                   D. attend to

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So before I go any further I want to thank you very much for inviting me to __________ this important conference.