What are the keywords in the following sentence? select the correct phase when the moon has completed quarter of its orbit around the earth .
complete, earth, moon, orbit, quarter

What are the keywords in the following sentence? a narrow corridor with reliefs on the wall
corridor, relief, wall

What are the keywords in the following sentence? the curved walls and high ceiling create an amazing sense of space .
sense, space, wall

What are the keywords in the following sentence? water flowing over a dam
dam, flow, water