MR. LONG IS A STRICT TEACHER IN OUR SCHOOL. DO YOU KNOW HIM

523) - DE THI TNTHPT
DE THI TNTHPT
523) Mr. Long is a strict teacher in our school. Do you know him?A. Do you know him Mr. Long is a strict teacher in our school?B. Do you know Mr. Long, is a strict teacher in our school?C. Do you know Mr. Long, a strict teacher in our school?D. Do you know a strict teacher in our school is Mr. Long?