E-mail is very popular today.people seldom write letters now,( A.did they?B.do they C.didn't the-y D.don't they 选哪个,为什么?

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E-mail is very popular today.people seldom write letters now,( A.did they?B.do they C.didn't the-y D.don't they 选哪个,为什么?
E-mail is very popular today.people seldom write letters now,( A.did they?B.do they C.didn't the
-y D.don't they 选哪个,为什么?

E-mail is very popular today.people seldom write letters now,( A.did they?B.do they C.didn't the-y D.don't they 选哪个,为什么?
选B
因为 seldom是很少的意思,表示否定的,所以反义疑问句就用肯定.

seldom否定的,选B

D