问题描述：
open作开业讲有无被动语态?
Thanks a lot for giving me so much help when I was in trouble
________
A You're welcome B Not at all CIt's a pleasure D All the bove
答案选的D,为什么?You're welcome 和 It's a pleasure 有什么区别? It's a pleasure 什么意思?
Thanks a lot for giving me so much help when I was in trouble
________
A You're welcome B Not at all CIt's a pleasure D All the bove
答案选的D,为什么?You're welcome 和 It's a pleasure 有什么区别? It's a pleasure 什么意思?
问题解答：
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