1.Is Jim at home by himself No.There's another boy_____with himA.playing B.play C.plays D.to getting为什么不选C?2.The sheep ____to the tree was found dead .How poor it is.A.tied B.tying C.was tied D.was tying3.Helen____ her keys in the office so
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/13 10:23:56
1.Is Jim at home by himself No.There's another boy_____with himA.playing B.play C.plays D.to getting为什么不选C?2.The sheep ____to the tree was found dead .How poor it is.A.tied B.tying C.was tied D.was tying3.Helen____ her keys in the office so
1.Is Jim at home by himself
No.There's another boy_____with him
A.playing B.play C.plays D.to getting
为什么不选C?
2.The sheep ____to the tree was found dead .How poor it is.
A.tied B.tying C.was tied D.was tying
3.Helen____ her keys in the office so she had to wait until her husband _____
A.has left;comes B.left;had come C.had left；came D.had left;would come
4.Tom ____ out
Oh,has he?What time ___he ____out?
A.is;did;go B.went;is;going C.has gone;did;go D.is going;does;go
答案和为什么
1.Is Jim at home by himself No.There's another boy_____with himA.playing B.play C.plays D.to getting为什么不选C?2.The sheep ____to the tree was found dead .How poor it is.A.tied B.tying C.was tied D.was tying3.Helen____ her keys in the office so
1.选A 如果你选Plays,那么这个句子就有两个动词了,不行（一个是is,一个是plays）
2.A tied to the tree是过去分词做定语,那头绑在树上的绵羊被发现死了,多可怜啊
3.C had to wait用的是过去时,而Helen 丢钥匙是在她等之前,所以用过去完成时,后面她丈夫出现,时态和had应该一致
4.C 从回答可以看出问句应该用现在完成时
他出去的这个动作发生在过去,所以用一般过去式
“Tom出去了” “哦?是吗?他什么时候出去的?”
1A There be doing句型
2A tied做后置定语修饰sheep 死了的羊
3C因为后面是had to 所以可以确定动作是发生在过去的过去，helen把钥匙忘在办公室这个动作发生在她老公回家前，是过去的过去，所以前面的空用过去完成时，后面用过去式
4CTom现在在外面 看回答是has he 所以提问也是一致的，出去的动作发生在过去，所以后面用过去式...
全部展开
1A There be doing句型
2A tied做后置定语修饰sheep 死了的羊
3C因为后面是had to 所以可以确定动作是发生在过去的过去，helen把钥匙忘在办公室这个动作发生在她老公回家前，是过去的过去，所以前面的空用过去完成时，后面用过去式
4CTom现在在外面 看回答是has he 所以提问也是一致的，出去的动作发生在过去，所以后面用过去式
收起
1.A.强调的是进行时.
2.A.被动.
3.C吧.
4.C吧.
回答仅供参考.
1.There be 结构中动词不可能用第三人称单数,在此意境中应用进行时态.
AACC