2017北京市中考试题单项挑选（共10 分，每小题1 分）从下面各题所给的A、B、C、D 四个选项中，挑选能够填入空白处的最佳选项． 21．My father is a worker． is very kind．（　　） A．He B．She C．His D．It 22．More and more young people go skating winter．（　　） A．at B．in C．on D．to 23．﹣﹣﹣ did you stop playing？ ﹣﹣﹣Because I was tired．（　　） A．How B．Why C．When D．Where 24．The hotel is very old．It's one of buildings in the city．（　　） A．old B．older C．oldest D．the oldest 25．﹣﹣﹣ I hand in the report today？ ﹣﹣﹣No，you needn't．（　　） A．Can B．Must C．Shall D．Could 26．﹣﹣﹣How do you usually go to school？ ﹣﹣﹣I to school on foot．（　　） A．go B．went C．was going D．will go 27．My mother some washing when the telephone rang．（　　） A．does B．did C．is doing D．was doing 28．Lily is my classmate．We each other since she came to our school．（　　） A．know B．knew C．have known D．will know 29．The mobile phone in 1973．（　　） A．invents B．is invented C．invented D．was invented 30．﹣﹣﹣Judy，could you tell me_______the schoolbag？ ﹣﹣﹣Oh，yes．I bought it in a store on the Internet．（　　） A．where did you buy B．where will you buy C．where you bought D．where you will buy