毎日やること、掃除、洗濯、炊事、、、と広範囲にわたる活動でchores(複数形)といいます。0:50 and as well as helping his parents with household chores,,,家事手伝いで両親を助けるかたわら、、、 
http://www.youtube.com/watch?v=0PmQ3fHTlqY 0:32 schedule chores, dividing tasks into daily weekly and monthly categories to maintain order and cleanliness
http://www.youtube.com/watch?v=hvOtWRTvCfs 0:15 doing the chores
http://www.youtube.com/watch?v=N62aheQoURM 0:34 among her list of daily chores
http://www.youtube.com/watch?v=Viyj_ewUbsY&feature=related 3:27 her husband Peter does all the chores 夫のピーターが一切の家事をこなす
http://www.youtube.com/watch?v=jtyie_HwWwg 1:26 she has household chores to do.
参考リンク
http://bridge-english.blogspot.jp/2010/04/blog-post_28.html 炊事洗濯を英語でなんと言うか?   
                                        
練習問題解答
                                        
a-2409     the household chores
                                        
a-3434    every household chore 
                                       
b-2493       menial chores
                                 
b-4807               an annoying chore
                                
b-7852     daily chores