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

I was really relieved when I found the documents. I ________ (look for) them whole morning.

18/100

I was really relieved when I found the documents. I ________ (look for) them whole morning.

had been looking for

had looked for

had been looked for

had been looked

Giải thích

Chọn đáp án: A