Final answer:
When there is a shared center turn lane, you should use that lane to make a left turn.
Step-by-step explanation:
When there is a shared center turn lane, the lane that must be used to make a left turn depends on the road design and the traffic rules of the specific area. In general, you should use the shared center turn lane to make a left turn. This lane is specifically designated for vehicles to wait before turning left, allowing other vehicles to pass in the adjacent lanes.
For example, let's say you are driving on a road with two lanes of traffic traveling in each direction, and a shared center turn lane in the middle. In this case, you would use the shared center turn lane to make a left turn, and wait there until it is safe to merge into the traffic in the opposite direction.
It is important to pay attention to traffic signs and signals, as they may provide specific instructions regarding which lane to use for making a left turn.