I have been going to Shanghai ____ than I used to. A. less B. less often

I have been going to Shanghai ____ than I used to. A. less B. less often
请问哪个正确?帮忙解释一下,谢谢!

第1个回答  2011-04-02
B ,意思是不像过去那么经常去上海了
第2个回答  2011-04-03
选B,less修饰often
第3个回答  2011-04-04
B
第4个回答  2011-04-02
应该是b 没以前那么频繁,经常了
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