请看以下两句话:I took my turn driving while my husband slept.I took my turn driving while my husband was sleeping.1.以上两句while都可以用when替换吗?2.具体来说,while和when后用一般过去时和过去进行时有没有区别?
...lans
allow. Meet in front of the VisitorEducationCenter.
翻译:孩子们可以测试自己的技能,并将其与黄石公园的动物进行比较。只要你的计划允许,你参与的时间长短不限。集合地点为游客教育中心前面。 Canyon Talks at Artist Point
(June
9 to Sep...
...状语从句时的省略比较复杂,没有规律,不知道什么时候可以省略。麻烦老师讲下,最好能删繁就简。比如:I read as many pages as are required.The girl are as busy with their work as bees.Work is as necessary for peace of mind as for health of body.Buying a new ...
...needed. 这句话中clothes作为复数名词:(1) clothes 前面为什么可以用much,而不是用many?(2) 谓语动词为什么不用复数形式?2. Too much old magazines is on sale there. Too much fruits is also harmful to your health.这两句话用同样的问题。
...何解释?2)where 前面为何有逗号?逗号有无有何区别?可以去掉逗号吗?3)In Washington, where the kamikaze terrorist severely damaged the nerve center of American military power 这整个部分是地点状语从句吗?