1 "Do you often go swimming?" he asked his students
He asked his students that if they often go swimming.或者He asked his students that whether they often go swimming or not.
2 He said,"Are you a student?"
He asked me that if I was a student.
1 "Do you often go swimming?" he asked his students
He asked his students that if they often go swimming.或者He asked his students that whether they often go swimming or not.
2 He said,"Are you a student?"
He asked me that if I was a student.