how long has Alison been skateing?与how long did Sam skate的区别how long has Alison been skateing?与how long did Sam skate?的区别.简易点.复制的绕道.

how long has Alison been skateing?与how long did Sam skate的区别how long has Alison been skateing?与how long did Sam skate?的区别.简易点.复制的绕道. How long has alison been skating?How long has alison been skating?She's been skating for five hours.How long did sam skate?he skated for four hours.我要解释的是那四句 因为本人英语差 所以请你们告诉哈我 回答了还有加分 How long did you sleep last night?什么意识还有When did you start class today?how long have you been in class today?How long has Alison been skating?she's been skating for five hours.How long did Sam skate?He skated for four hours.是什么意 Alison has been skating for five hours. how long has the meeting()?AbegunBstartedCoverDlasted 是how long has she been learning…还是how long has been she learning… 为什么是How long has he been there 而不是How long has he gone there How long has she been dead?=How long _ _ _ she Alison has been learning Chinese s_______ he moved to China 翻译How long has this food store been in business? How long has he been in the hospital?翻译 How long has it been since.这是什麼用法 意思 填空:How long has Mr.Black been t_______in this school? how long has your brother () the new dictionaryAborrowedBlentC boughtDhad how long has your father worked in the company? (改错)How long has Lu Xun died?怎么改呢? How long has the hous been on fire i want to know___there A.how long she has been B.how long she has gone 选哪个?