Test Track and Mission Space are the only two that definetly have the single rider line....EE had a single rider line durin the soft openings...don't know if they still do.
Expedition Everest does have a single rider line. Go to the Fast Pass Return Line and ask the CM for a single rider pass.
Also, it looks as though the single rider option for Mission Space has been eliminated. The queue is changed around to accomodate the addition of the less intense (green ticket) version of the ride. As it looked on Saturday, the only lines were Fast Pass, Green Queue and Orange Queue.
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