cities
countries
libraries
bodies
forties(几十的数词复数都是)
difficulities
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- 1I can't,either等于什么
- 2I will go to bed when I finish my homwork的同义句
- 3much better和 much more better的区别是什么呢?
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- 9甲、乙、丙共有100本课外书.甲的本数除以乙的本数,丙的本数除以甲的本数,商都是5,余数也都是1.那么乙有多少本书?
- 10Is this an English book?改为复数句