THEY WARNED _______ THE CAR.A. US ABOUT BUYING B. US TO BUY C. BUYI...

4. - KIEM TRA 15'''' TIENG ANH 11 LAN 3
KIEM TRA 15'''' TIENG ANH 11 LAN 3
4. They warned _______ the car.A. us about buying B. us to buy C. buying D. us against buying