Mike and Sue have been quarreling.（用have+名词结构改写句子）

标准答案：Mike and Sue have had a quarrel.

我的答案：Mike and Sue have been having a quarrel.

▲我完全赞同你的答案！

▲标准答案Mike and Sue have had a quarrel.有误，不符合原句的意思。因为现在完成时表达动作发生在过去，只是对现在有影响，但不表示目前还在进行中。

▲Mike and Sue have been quarreling. 用现在完成时，表示动作发生在过去，一直持续到现在，而且还在进行中。而你的答案Mike and Sue have been having a quarrel. 完全表达了相同的意思。

▲have + (a) 名词，该短语中的have不表示“有”的概念，而是“从事”某种活动，完全可以用进行时，包括现在完成进行时。再举数例：

He and I have been having a few disagreements lately. 最近我和他一直有争执。

I have been having nightmares these days. 我这几天一直做噩梦。

They have been having a rough time recently.   他们近来的日子很不好过。

I have been having pain in my chest recently. 近来我的胸口一直发痛。

We have been having wonderful weather recently. 近来天气非常好。

The children have been having a lot of fun. 孩子们一直玩得很开心。