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If you drive along the river bank it is twenty miles out of your way.
If you take your mobile phone into class, it must be turned off.
We do not use calculators when we write tests.
If you push this button, the volume increases.
If you close the door, it locks automatically.
I wear my old boots when I work.
When I cook salads, I use only olive oil.
When I concentrate, please do not to make so much noise.
Unless prices rise, it is not a good investment.
Unless someone asks you politely, refuse to do anything.

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