單選題 · 選擇一個答案
When must you signal that you are turning to the right?
什麼情況下向右轉的時候必須打右轉向燈？
Signal right for at least three seconds before a right turn.
右轉前至少提前3秒打右轉向燈。
閱讀相關知識
Signal even when other traffic is not visible. Check mirrors, blind spots and give-way requirements; signalling gives no priority.
暫時看不到其他車輛也應示意，並檢查後視鏡、盲點及讓行條件；打燈本身不賦予優先權。