按要求写单词
careful（副词）                                can （过去式）              
wet（反义词）                                  some（同义词）                
litter（改一字母成另一单词）                   here（同音词）               
here(反义词)                                   go（反义词）                 
smoke（现在分词）                              dirty（反义词）              
cannot（缩略式）                               happy（反义词）                
for（同音词）                                  lots of （同义词二个）