1.explain 2.speak.It says real mastery of word.So we should pick up explan in the fist one cause 'hear' is so superficial and the second answer should be 'speak' cause it says with understanding, which means everybody should figure out what we wanna say.
-al I believe is the answer
Answer:
in southern sky u don't see stars or palnets or even clouds
u see B colors
vuz in paragraph said the night sky not always black it sometimes it glows red or green
the question was talking about the sky
