1道英语语法题It was a game without rules,of which the sole aim seemed to ___been to drive the ball through the opponent's goal.空白出原句是have,为什么呢?我认为该是has啊,因为前面是“a game”呢晕了,请教谢谢，但是

1道英语语法题It was a game without rules,of which the sole aim seemed to ___been to drive the ball through the opponent's goal.空白出原句是have,为什么呢?我认为该是has啊,因为前面是“a game”呢晕了,请教谢谢，但是
1道英语语法题
It was a game without rules,of which the sole aim seemed to ___been to drive the ball through the opponent's goal.空白出原句是have,为什么呢?我认为该是has啊,因为前面是“a game”呢
晕了,请教
谢谢，但是我还是不太明白：seemed to后面为什么就要用原型呢？
难道没有someone has been done sth.的句型吗

1道英语语法题It was a game without rules,of which the sole aim seemed to ___been to drive the ball through the opponent's goal.空白出原句是have,为什么呢?我认为该是has啊,因为前面是“a game”呢晕了,请教谢谢，但是
首先,纠正你的一个误解,seemed的主语不是a game而是后面从句中的the sole aim.
把句子分解开看,后面of which从句,the sole aim seemed to have been blah blah blah.
seem后面跟的是不定式to do结构.需用动词原形,而和主语的单复数无关.

这个HAVE因为前面的seemed to 而决定了其用原形，前面的to是动词不定式的符号，所以用原形.

在这里have并不是谓语，而是不定式短语 seem to have。。。

因为前面是从句，所以要用HAVE。