回憶1：
    S1: Second-hand furniture
    答案queen, double, mirro, 1.8m, Riverview, West Avenue, Tuesday(不確定),
    S2: Welcome to Toronto -workshop
    S3: Pre-session course in October
    S4: rural life in 13 century in England.
    回憶2：
    S1queen, double, mirror,1.8 meters, fridge,Riverview, West Avenue, main road, bus stop, Tuesday.
    S3 medical center,Student Union,clubs,self-access lab,electronic directory,text structure,differences,outline,powerpoint.
    S4museum, map,protection,shops,fertilze,birds就記得這些了。