I.1~5 BADBB 6~10 AABCA
11~15 CBACA 16~20 CBBDA
II.1 winner 2.relaxed 3.careful 4.fifth 5.peaceful 6.tired 7.himself 8.advertisements 9.quickly 10.lucky
III.1.camp up 2.came ture 3.no matter 4.so that 5.stay up
IV.1.doesn't;or 2.How much 3.didn't it 4.prefer;to 5.be cleaned
V.1~5 EACDB
VI.1~5 DADCB 6~10 ABCDA
VII.1~5 FFTFT 6~10 DABBA 11~15 ACBCD
16.trees change a lot when they grow
17.catch enough sunlight
18.face challenges in life
19..becoming real adults
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