อยากได้แบบฝึกหัดฟรีนับพัน (ไม่มีสิ่งรบกวนเลย)? Here’s how
ได้รับความนิยมมากที่สุด
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English as a Second Language (ESL)
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PAST MODAL VERBS
Past modal verbs
Complete the sentences
select the correct past modal verb: should have(should've) or might have (might've)
Choose correct alternative
past modals, verbs, vocabulary. Unit 7
past models
Decide which TWO modal verb forms are possible in each sentence.