请问此句子中to restore...不定式短语的逻辑主语应该是them (waves) 或是force (the gravity of the earth
问题描述：
请问此句子中to restore...不定式短语的逻辑主语应该是them (waves) 或是force (the gravity of the earth
Once ocean waves have been generated,the gravity of the earth is the force that them in a continual attempt to restore the ocea surface flat plane.
对不起掉了一个词drive.和to a 正确句子是：
Once ocean waves have been generated,the gravity of the earth is the force that drives them in a continual attempt to restore the ocea surface to a flat plane.
答
drive sb.to do sth.
所以是:the forec(the gravity of the earth) drives them(waves) ...to restore the ocean ...
不定式短语的逻辑主语是后者:force(the gravity of the earth)