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Quiz · english-quiz

Past Perfect Continuous

แบบทดสอบ Past Perfect Continuous Tense จำนวน 50 ข้อ ฝึกใช้ had been + V-ing เพื่ออธิบายเหตุการณ์ที่ดำเนินต่อเนื่องก่อนจุดเวลาหนึ่งในอดีต

1. They _____ attention before the teacher warned them.
2. _____ you been working here before you changed jobs?
3. Choose the correct short answer: Had she been working?
4. Choose the correct -ing form of "travel" in standard American English.
5. Choose the correct -ing form of "sit".
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