Past Perfect Continuous

I ________ (wait) here for hour last Monday before the bus came.

• have been waiting

• had waited

• had been waiting

• was waiting

She ________ (teach) chemistry before she became a journalist.

• had been taught

• had been teached

• had teached

• had been teaching

Jenny was annoyed. Jim _______ (call) her every night for the whole week!

• has been calling

• had been calling

• had called

• called

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

• had looked for

• had been looked

• had been looked for

• had been looking for

When I arrived home, my mom ______ (already cook).

• had already been cooking

• already had been cooking

• have already been cooking

• had been cooking already

I ___________ (wait) for her for hours before she came.

• had been waiting

• has been waiting

• had been waited

• had waited

Her eyes were red. It was obvious that she _____ (cry).

• had cried

• had been crying

• have cried

• cried

I _____ (work) for Exxon for 15 years.

• worked

• have been working

• was working

• had been working

She was very tired. She _____ (type) letters all day long.

• had been typing

• had typed

• has been typing

• has typed

We __________ (produce) these kind of chair since 1995.

• had been producing

• have been producing

• have producing

• have produced