二、綜合測驗：
(1) Taiwan’s policy of flushing used toilet paper down the toilet took effect in June 2017 after being introduced by the nation’s Environmental Protection Agency (EPA). This new law was put into place to help make bathrooms cleaner   11     . However, a survey found that some toilet paper was still marked as insoluble on its packaging months later.   12     , the survey reported that nearly 50% of the public were still unclear on which tyepes of toilet paper they should flush. To cut down on confusion, the manufacturers of Taiwan’s sanitary wares have   13     some clear answers.
     As long as a toilet is made to meet standard regulations, it should not have any problems   14    used toilet paper, say sanitary wares’ manufacturers. The problem of clogged toilet results from people flushing the wrong kind of paper. While toilet paper is water-soluble, facial tissues and napkins are not, which means they are more likely to block pipes. If the public   15    about these differences, it could help avoid any future confusion on the issue.
【題組】11.
(A) circumstances
(B) environments
(C) constructions
(D) achievements