Past Continuous vs. Past Perfect Continuous

She was out of breath because ____.

• she'd run

• she'd been running

• she run

• she been running

It was sad to sell my old car - ___ it since I was a student.

• I have had

• I have

• I'd had

• I'd been having

The party was great. ___ it for months.

• They'd planned

• They'd plan

• They'd been planning

• They did plan

We were really pleased because ___ our project.

• we'd finished

• we was finishing

• we were finished

• we'd been finishing

Everything was wet because it ___.

• had rained

• had been raining

• raining

• had rain

How long ___ each other when they decided to get married?

• had they been knowing

• had they know

• had they been known

• had they known

They weren't very happy because ___ for six hours.

• they'd been waiting

• they'd had

• they'd waited

• they'd waiting

I didn't watch the film because ___ it four times.

• I'd already been seen

• I'd already seen

• I'd already been seeing

• I'd already saw