U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
U27 L2 Present Perfect
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คำแนะนำของผู้เขียน

Presentation to show grammar for present perfect