动词ing,直接加ing,去e加ing,双写尾字母再加ing,各5个.

问题描述:

动词ing,直接加ing,去e加ing,双写尾字母再加ing,各5个.

直接加ingaughing sleeping watching singing cleaning reading drinking jumping seeing looking去e加ing的动词have,having;file,filing;bite,biting;cave,caving;dive,diving;take,taking;debate,debating;...