他们选这个地址是有原因的，对吧？
There is a reason they chose this location, isn't there?
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there英 /ðeə/|美 /ðɛr/|英 /ðeə/|美 /ðɛr/
is英 /ɪz/|美 /ɪz/
Isn't英 /ˈɪznt/|美 /ˈɪznt/
解释
肯定陈述句 there is 后接否定附加疑问 isn't there，反转为一般疑问句式，期待对方确认。
There is a reason they chose this location, isn't there?
肯定陈述句 there is 后接否定附加疑问 isn't there，反转为一般疑问句式，期待对方确认。