level 1口语 8-1 日期
2017-05-09 3评论
【E29】level3 8-1 Past Tense
2017-05-08 0评论
【E32】level4 -4 Used to + verb
2017-05-08 0评论
【E31】level1 - 11Time of Day
2017-05-08 0评论
【E30】level2 7-1 At the restaurant
2017-05-08 0评论
【E28】level1 11-1 How often do you go to work?
2017-05-08 0评论
level 1音标 -15 /ɔɪ/
2017-05-08 2评论
L1语法课-不定代词?
2017-05-06 0评论
【E32】level4 -3 Past tense
2017-05-05 3评论
【E29】level3 7-3 irregular verbs
2017-05-04 0评论