The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal.
_______ a post office, I stopped _______ some stamps.
We're _______ to listen to her _______ voice. It's _______ to hear her sing.
.I fell down and broke three of my teeth. I wonder how many times I have to come here and get my false teeth _______.
I still remember _______ to my home town when I was young.
.If he succeeded _______ a job, his children wouldn't be suffering from hunger now.