When changing lanes, you should not:

Question

Before changing lanes, check your mirrors to make sure you have enough space to safely move. After activating the appropriate turn signal, check again to see if anyone has moved into your blind spot. After you begin to change lanes, check once more to verify that your path is still clear.

Accepted Answer

Expect other drivers to clear your path.

Answer

Use your turn signal.

Answer

Check your mirrors.

Answer

Check your blind spot.