I have ___ work to do.
It was last October ____ they finally came back to their hometown.
My pen is missing. I can’t find ____ anywhere.
Had I learnt English well, I ____ interview for the job tomorrow.
I think the answer is right but I’m not ____ sure about it.
Having walked in the desert for several days, we felt exhausted, but we had to find a pool before water in the bottle ____.