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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. She _____ for three hours before her friend arrived.
2. I _____ for the exam, so I felt unprepared.
3. The workers _____ properly before the manager inspected the building.
4. What _____ he been doing before you called him?
5. How long had he been _____ before he took a break?
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