Thì Quá Khứ Hoàn Thành Tiếp Diễn — Bài Tập 2

The forest floor was thick with leaves as it ______ for days.

He ______ for a job for six months before he was hired.

They discovered that the accountant ______ the books to hide the losses.

They ______ in that house for ten years before they decided to sell it.

The detective ______ the case for a year before he found a clue.

The volcano ______ quietly for centuries before the eruption.

I ______ a headache all day, so I went to bed early.

The children's faces were covered in chocolate because they ______ the cake secretly.

My fingers were sore because I ______ the guitar for hours.

She ______ for the bus for half an hour when it finally came.