"Where can I buy a phone card in this city?" he asked. a. He asked me where could14/20"Where can I buy a phone card in this city?" he asked.He asked me where could he buy a phone card in that city?He asked me where he could buy a phone card in that city?He asked me where I could buy a phone card in that city?He asked me where he can buy a phone card in that city?Giải thíchChọn đáp án B