100 câu trắc nghiệm Thì quá khứ hoàn thành tiếp diễn (Past Perfect Continuous) có đáp án
Xem toàn bộ quiz

When I first met Ann, she ________ (work) in Samsung for 15 years.

19/100

When I first met Ann, she ________ (work) in Samsung for 15 years.

had worked

had been working

have been working

worked

Giải thích

Chọn đáp án: B