The real secret to successful learning lies instudents＿＿＿＿an interest in what they are doing.

The woman can’t__________his son in the park.

How does your father go to work —He often goes to work____ his car every day.

Peter, look at the mess you’ve made in your bedroom! You’d better ______.

Lucy is a(n) student, she answers the teachers’ questions in her class.