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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. The workers _____ properly before the manager inspected the building.
2. What _____ he been doing before you called him?
3. What is the correct form of the verb "write" after "had been"?
4. Which sentence correctly uses Past Perfect Continuous?
5. Choose the incorrect sentence.
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