英语选择题单选题（托业）,Currently,sendingpromotionale-mailsisnotnecessarilyillegalthemailrevealsitscommercialintentandinformsrecipientsofhowtotakethemselvesoffthemailinglist.(A)then(B)aslongas(C)by(D)si

Question

英语选择题单选题（托业）,
Currently,sending promotional e-mails is not necessarily illegal _____ the mail reveals its commercial
intent and informs recipients of how to take themselves off the mailing list.
(A)then (B)as long as (C)by (D)since

Answer 1

选B,表示让步,as long as 翻译为“只要”
翻译：目前来说,发送促销邮件并不被违法,只要这封邮件表明了它的商业目的并且告知收件人如何删除该封邮件.
不懂可以追问.
表示since 明显语意不和...做题时要试着翻译通顺,这样才能提高正确率.