For or since?

Fill in for or since into the gap.

I haven't phone home ______ Christmas.

Fill in for or since into the gap.

We've been here ______9 o'clock.

Fill in for or since into the gap.

I have worked for KFC _______more than eight years.

Fill in for or since into the gap.

They've been living in France _______ eight years.

Fill in for or since into the gap.

The pilots have been on strike -------- two months.

Fill in for or since into the gap.

Nobody has seen him ________ last Friday.

Fill in for or since into the gap.

We've had terrible weather ______Saturday.

Fill in for or since into the gap.

We have been waiting for the bus _______ half an hour.

Fill in for or since into the gap.

Our dog has been ill ________two days.

Fill in for or since into the gap.

The kettle has been boiling _________ ten minutes.