My name is Peter. I'm a student. I had a busy weekend. I did my homework at home on Saturday morning. I went to the park by bike on Saturday afternoon.I cleaned my room on Sunday morning.On Sunday afternoon I visited my grandparents. At night，I watched TV with my parents. I was very tired，but I was very happy.

书，前人思想成就的结晶，是留给后世物价的精神财富。某学校学习开展“读书∙千里之行”活动，请你参加。

Mr Li says learning English ______ action, or we will get nothing.

①人诚实，言而有信

②一种不诚信的行为

③对家长诚信，对老师不诚信

④既是对他人不诚信，也是对自己不负责