Grammar & Usage

ก whichˆศ‰บ‚ฬŠึŒW‘ใ–ผŽŒ฿‚อ the sales presentation ‚ษŠึ‚ท‚้•โ‘ซ๎•๑B




Œฉ‚ฤŠo‚ฆ‚้ Part1 •poŒ๊


presentation

making/giving a presentation He is a presenter.
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