I’LL HAVE TO BUY A MAP ………. I DON’T KNOW THIS AREA.A. IF B. WHEN C...

31. - 400 CAU TRAC NGHIEM GIUP ON TAP TIENG ANH LOP 9
400 CAU TRAC NGHIEM GIUP ON TAP TIENG ANH LOP 9
31. I’ll have to buy a map ………. I don’t know this area.a. if b. when c. because d. because of