_______ IS HIS ENGLISH TEACHER. A. WHAT B. WHEN C. HOW OFTEN D. WH...

23. - LOP 4 UNIT 8 LY THUYET BAI TAP DAP AN
LOP 4 UNIT 8 LY THUYET BAI TAP DAP AN

23. _______ is his English teacher.

a. What b. When c. How often d. Who