4. Complete the sentences using the Past Perfect Continuous 1. We ………….(talk) for an hour when somebody knocked on the door.
2. I ………….(read) this book since 2 o'clock when he came.
3. How long ………….(you live)here before you bought a house?
4. Her eyes are red. She …………..(cry) all evening.
5. She ………….( not work) until he came.
1. had been talking
2. had been reading
3. had you been living
4. had been crying
5.hadn't been working