根据课文原文，填入所缺内容。
★ It was not immediately obvious that water was 1 the development of life.
★ This produced ____2____, which made it possible for life to develop.
★ I earned my passage by working as an unpaid hand, which ____3_____.
★ When they crossed the Rocky mountain, they 4 some mountain goats and even a grizzly and an eagle.
★ Many of them _____5_____riding wild horses and can win thousands of dollars.
根据所给首字母，汉语提示或语境写出符合句意的单词或词组，每空一词Users become a________ to crack cocaine much more easily if they smoke it.
All the ___________(参与者) in the debate had an opportunity to speak.
I was told that all six of them had piled into a car and_____ ______ _______ the railway station.(走向，前往)
Pop songs have to be c______ so that people can remember the main words the first time they hear it
Chopsticks Brothers, which_____ _____ (包括)director Xiao Yang and musician Wang Taili sang Little Apple at the 2014 American Music Awards.
注：用所学单词的正确形式填空。He almost ______（噎住） to death on a fish bone yesterday.
Would you ______（挤出） some oranges and make me a glass of juice?
The ______（症状） don’t appear until a few days after you’re infected.
He received a prize at the graduation ______（仪式） of the university.
The prisoners _______(试图) to escape, but failed.
The keys are in the _________(占有) of the boss.
Would you please let me know your p________ address （固定地址）？
She was forced to have her baby ________.(收养)
Many people expressed a strong _____ (偏爱)for the original plan.
Tears are ____ (倾泄)down his cheeks.
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