{01}-Sir,may I borrow some new books? -Sorry,you can"t________you haven"t turn back those you borrowed one month ago.
A.unless
B.before
C.because
D.until
解析:C 考查连词。根据答语“对不起,你不能,因为一个月之前借的那些书你还没有还。”可知答案。 本题选B。 {02}Tourism, _______ it brings in money to a country, can also result in damage to the World Heritage sites there.
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