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.是什么意识 帮我翻译

How long did you sleep last night 你昨晚睡了多久
When did you start class today? 今天你什么时候开始上的课
how long have you been in class today?你今天上课上了多久
How long has Alison been skating?Alison滑了多长时间的冰
she's been skating for five hours.她滑了5个小时的冰
How long did Sam skate?错误说法,应该是: How long has Sam skated?滑Sam冰滑了多久
He had skated for four hours. 他滑了4个小时的冰

How long did you sleep last night?
你昨晚睡多久？
When did you start class today?
你今天几点开始上课？
how long have you been in class today?
你今天上了多久的课？
How long has Alison been skating?
艾利森滑雪滑了多久？
she's been skating for five hours.
她滑了五个小时。
How long did Sam skate?
森滑了多久？
He skated for four hours.
他滑了四个小时。

八年级下册第六单元哦、、、
你今天几点开始上课的？
今天你上来多久的课了？
Alison滑了多久？
她已经滑了4小时了。
Sam滑了多久？
他滑了4小时。

How long did you sleep last night?
昨晚你睡了多长时间?
When did you start class today?
今天你几点上的课?
how long have you been in class today?
今天你在教室呆了多长时间?
How long has Alison been skating?
艾莉森滑冰滑了多久?
she's been skating for five hours.
她一共滑了5个小时
How long did Sam skate?
山姆滑冰滑了多长时间?
He skated for four hours.
他滑了有4个小时

How long did you sleep last night?你昨晚睡了几个小时?
When did you start class today?你今天什么时候开始上课的?
how long have you been in class today?你在教室（上课）多久了?
How long has Alison been skating?艾莉森滑冰滑了多久了?（还在持续当中的动作）
she's been skating for five hours.她已经滑了5个小时了.
How long did Sam skate?萨姆滑了有多久?（发生在过去,已经完成的动作）
He skated for four hours.他滑了四个小时.