l listened to ( )carefully.l told him l would brush my teeth every night.

问题描述:

l listened to ( )carefully.l told him l would brush my teeth every night.

l listened to【him】carefully.l told him l would brush my teeth every night.
因为下句中有提到him 所以前后对应.
我仔细的听着(他的话).我告诉他我会每晚刷牙