Double-ups: Missing sides

This one arrives without permission, but is also ready to conquer.

______ alien ______

Money for a risky project might be useful for the seat of government.

______ capital ______

The place that runs the space project might have someone who needs to oversee absolutely everything.

______ control ______

The limit to what you can do in your work might help you get a chance for a tryout.

______ practice ______

This can be used for anything in the game, which might benefit the most skillful or deceptive player.

______ card ______

Using this to string your guitar might lead to an extremely sorrowful reaction.

______ gut ______

No one would want to make the decision you have, though it might lead to the best piece of meat.

______ choice ______

This might hinder your progress to getting a resolution from everyone together.

______ block ______

The act of disparaging might require cleaning out.

______ mouth ______

What defines a film when you hear it might also cause you to stop listening.

______ tune ______

This could cause all the lights to go out as you huff and puff round the obstacles.

______ circuit ______

You can run like the wind when you’re in the infantry.

______ foot ______

Where the land meets the water you can be neck and neck.

______ level ______

Ordinary people can make use of a toilet when out and about.

______ public ______

A very narrow possibility might lead to an unexpected encounter.

______ chance ______