they are good at this art and work hard at passing on the sk

they are good at this art and work hard at passing on the sk 英语翻译Peter and Sally are good friends.They both work hard at and they are very good at swimming in the You work hard and often successful.you are good at making or work hard on和work hard at they both study hard and are ____ at their lessons well good Tigers are big and strong and they're good at hunting the ot They work hard at _____(draw). work hard on the subject,work hard at English,in your lesson All the chilldren work hard at还是work hard on our lessons work hard at hard the students _____the stick at that time 1.are passing on 2.