The speaker's biggest enemy is: A: Sameness B: Hecklers C: Boredom D: Bright lights E: Fear

What are the lights that the lighting system contains? A: headlights B: brake lights C: instrument-panel lights D: courtesy lights

The　share the same switch. A: navigation lights and flashing beacon B: rear dome light and courtesy lights C: strobe lights and courtesy lights

下面哪些属于Unity光源的类型？ A: Directional lights B: Point lights C: Spot lights D: Area lights

First of all, the lights are very attractive. They are headlights, turning lights, fog lights, taillights ，brake lights and so on. These lights help drivers to have a good visibility in poor conditions and give singals to show the intentions.

The　should not be used when flying through clouds or overcast. A: navigation lights and flashing beacon B: strobe lights and flashing beacon C: strobe lights and courtesy lights

()the students had to go to bed A: The lights had gone out B: The lights having gone out C: The lights went out D: The lights have gone out

The red, orange and yellow lights contain ______. A: less heat than the other lights B: more heat than the other lights C: a great deal of heat D: a little heat

The lights were ______ in the morning.

He turned off the lights and then ____