5.They ___ (help)us since five this morning until now.应该填什么,怎么分析的??
来源:百度知道 编辑:UC知道 时间:2024/05/28 17:04:37
have been helping是现在完成进行时的用法.表示从过去开始一直进行着直至现在.
They have helped (help)us since five this morning until now.
这是一个现在完成时的句子,表示从过去开始一直持续到现在,并对现在有影响。
have helped.
现在完成时.过去动作持续到现在
had been helping,过去完成时,因为是一个持续的动作,并且是过去开始做的,这段时间一直在帮忙所以用ing.
答案是have helped,题目中“until now”意思是知道现在,说明他们帮助我们并且现在还在帮助,所以应该用现在完成式have been结构
until now 是多余的。
5.They ___ (help)us since five this morning until now.应该填什么,怎么分析的??
they asked what they could do to help us
they want to know ()to help us. b.what they can;c.how they can
_______time,they would certainly come and help us.
They want to know ( ) do to help us.
They ___ to the public to help the distressed children.
_______ that they refuse us, who else can we turn to for help?
our teachers always do what they can to help us with our studies
I don't think ___ of the young couple was pleased to see us. They had gone away.
They provide us with food.