English Grammar Tenses

..... any one object if I turn the heating down?

I ..... come to the conclusion that nowadays nobody cares about anything.

No matter what happens next I ..... help you.

They ..... for 3 hours when the storm suddenly broke.

I assumed you ..... paying for the repairs until the end of last year.

..... get tired of answering the same questions every day?

She ..... working on that manuscript for 2 years now.

I ..... there once a long time ago and haven't been back since.

She ..... trying to pass her driving test but fails every time.

I ..... complete silence now while I try this experiment.