Guangzhou is becoming --- after the 2010 Asia Games A.Beauti

D.more and more beautiful
become+比较级
beautiful比较级：more beautiful
更加漂亮.D.more and more beautiful
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再问： 但是答案中写的是C我只是想问C和D两项的区别
再答： 应该是become more and more beautiful. e.g. Shenzhen becomes more and more beautiful. 因为一般使用的时候become总共加更加...，虽然more beautiful语法和D都对，但是D更加常见一些，比如 become hotter and hotter