紧急 The little boy is dirt from head to foot because he _____ in the mud all morning.A.has played B.is playing C.has been playing D.was playing 是用过去完成时 还是现在完成进行时

来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 07:17:10
紧急 The little boy is dirt from head to foot because he _____ in the mud all morning.A.has played B.is playing C.has been playing D.was playing 是用过去完成时 还是现在完成进行时

紧急 The little boy is dirt from head to foot because he _____ in the mud all morning.A.has played B.is playing C.has been playing D.was playing 是用过去完成时 还是现在完成进行时
紧急
The little boy is dirt from head to foot because he _____ in the mud all morning.
A.has played B.is playing C.has been playing D.was playing
是用过去完成时 还是现在完成进行时

紧急 The little boy is dirt from head to foot because he _____ in the mud all morning.A.has played B.is playing C.has been playing D.was playing 是用过去完成时 还是现在完成进行时
C 这小男孩浑身上下都脏了 因为他整个早晨都在泥土里玩.首先判断动作是一直持续的,所以用进行时,排除A 其次句子中的谓语动词是IS 所以判断时态是一般现在时,排除D .C是现在完成进行时,他这个动作持续到现在还没结束.所以选C.

C has been playing
all morning，整个早上，说明男孩从开始到现在都在泥里完，动作一直持续到现在，所以用现在完成进行时，选C

D,过去一直做某事，因为最后又all morning这个过去时间的限制。

用现在完成进行时，因为有 all morning，主句也有 is ，说明是跟现在有关的。

过去完成时是“过去的过去”，所以后面句中还会有一个过去式，如：he realized that he had left his bag at home.他发现他把包落在家了
此句用现在完成进行时
不懂可以再问。。。求采纳！

C 从过去到现在一直都在玩

How is the little boy The little boy is 【quiet】.划线提问 the little boy is s_____(not happy). The boy () () me is my little brother The little boy is not afraid any more同义句The little boy is____ ____afraid There is a little boy on the bed.(对a little boy提问） “The panda is cute.”the little boy s____怎么写 the little boy is trying （ ）the door The little boy is------(interest)in the -------(interest). The little boy is very cool.(改为感叹句） who is the little boy wait?his motherdf He is always ___(help) the little boy 要原因 The little boy is very clever.{改为感叹句} The little boy is a_____ to go out at night. The little boy is a_____ of a dog. The ______(nine)boy is my little brother. The little boy is not ___ ___ ___look after himself. The little boy is still ______(醒着的）