...best way to.2.每周四到六次four to six times a week3.多久...
二、短语过关1.……最好的方式the best way to.2.每周四到六次four to six times a week3.多久一次how often4.帮着做家务help with housework5.13÷[4/(11)]|(15k)(|k)| twice a week6.使用互联网use the Internet7.最喜欢的节目favorite program8.《动物世界》Animal World9.上舞蹈和钢琴课have dan...