动词的时态语态

题目

动词的时态语态
John has gone to Shanghai, but I'm wondering why he ---in such a hurry.
A left B has left C leaves D was leaving
He feels that his health---owing to---a long walk every other day.
A is improving ,talking B has been improved,being taken C improved,taken D is improving,have taken
No sound ahd no voice---for a long while.
A have heared B has heared C have beeb heared D has been heared

答案

1.A
他离开是过去的动作.排除C.
was leaving表示将要离开,不合题意,排除D.
这里不强调过去的动作对现在的影响,排除B.
2. A
只从第二个空就可以看出来.take a walk散步,与逻辑主语he是主动关系,不能用过去分词.据此排除B、C、D.
3.D has been heard
当主语是由and连接的两个带no的成分组成的时,谓语动词用单数形式.