BBC的10道趣味语法题（34）我们学习英语时最常接触的就是语法，那么你对所有格写法、分号和分词结构究竟懂多少呢？BBC网站最近发布了10道语法测试题，难住了不少人。挑战一下吧，看看哪道题会难倒你！3. Readthissentencecarefully.“IdliketointroduceyoutomysisterClara，wholivesinMadrid，toBenedict，mybrotherwhodoesnt，andtomyonlyothersibling（兄弟姊妹），Hilary.”Whichofthefollowingiscorrect？A. Hilaryismale.B. Hilaryisfemale.C. Itsimpossibletoknowfromthecontext.4. Lessandfeweroftencausepeoplegrief.Whichofthefollowingiswrong？A. Thereslesswaterintheriverthesedays.B. Ieatfewerthanfiveapplesaweek.C. Idrinklessthanthreecoffeesaday.黄召平整理答案及讲解：3. A。【讲解】Theabsenceofacommabefore“whodoesnt”impliesthatthereareotherbrothers.Acommaafter“mybrother”wouldmeanthattherewasonlyonebrother.“mybrother”和“whodoesnt”之间没有用逗号隔开，暗示还有其他的兄弟，“whodoesn，t”只是限定修饰其中之一。如果“mybrother”之后有逗号，说明只有一个兄弟。4. Co【讲解】For“countable“thingsusefewer.Forthingsthatarenot“countable一suchaswaterintheriveruseless.可数名词用“fewer”，不可数名词用“less”。句中“coffees”指的是“几杯咖啡”。