求大家给十个左右的初二英语二单元I’ll help to clean up the city..的单选题
问题描述：
求大家给十个左右的初二英语二单元I’ll help to clean up the city..的单选题
答
Tom often volunteers in the hospital,and he thinks[helping]others[is]great. 2.When the students saw Mr.Wang coming into the classroom,they stopped[talking]