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Grammar - ESL
B2:Grammar
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ใบความรู้และแบบฝึกหัด เรื่อง คำพ้อง
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do the tasks
Fill in the blanks with correct grammar structure of present perfect simple (S+has/have+V3), past perfect simple (S+had+V3) or past perfect continuos (S+had been+Ving).
upper intermediate+ test unit 1