Bài 3: Hoàn thành câu bằng cách chia dạng đúng của động từ trong ngoặc ở thì Quá khứ hoàn thành tiếp diễn hoặc Hiện tại hoàn thành tiếp diễn 1. Mike has never had an accident and he ………………………………… (drive) for years. 2. She had no idea it was so late because she ………………………………… (not / watch) the time. 3. “ ………………………………… (you / take) your medicine regularly, Mrs Smith?” “Yes, doctor.” 4. They eventually found the dog after they ………………………………… (look) for it all night. 5. How long ………………………………… your father ………………………………… (work) for the company when he retired?