题目内容：

-Can you tell me_?-Since 1990.A.how long have you become a singer B.how long you have live in tow

优质解答

B.how long you have live in tow
从句用陈述句语序,A have 提前了,所以选B
能告诉我你在城镇里住了多少年了吗?
从1990年开始