英语翻译据说里面既有现在完成时又有现在完成进行时的..速求啊..正确的话会追加分数1.他们一直在争吵.2.他自从来美国后

they have been quarrelling (all day long) 要看一直是多长时间...
he has been listening to english programs since he came to the usa.
he has been staring at the ceiling since the class began.
第4句如果是过去的事情我觉得不用用完成时
直接 the phone rang for several minutes but no one answered it.
如果是现在还在响应该是
the phone has been ringing for a while.
第五句我觉得进行不进行都是可以的
they have discussed about that issue for a month.
they have been discussing about that problem for a month.
she has been making silly mistakes recently.