把詞語連成一句話寫下來。  
1．我們    學(xué)習(xí)    認(rèn)真  要 
                                                                   
2．父母  打掃    在  衛(wèi)生 
                                                                   
3．陽臺    陽光    上    照到了 
                                                                   
4．收了    鋪到    床上    媽媽    棉被