WHEN HE HAD TO WAIT A LONG TIME TO BE SERVED, HE STARTED TO FEEL _...

12. When he had to wait a long time to be served, he started to feel _________________.A. impatient B. patient C. patiently D. impatientlyIII. Tìm một lỗi sai trong bốn phần gạch chân A, B, C hoặc D trong các câu sau. (1,0 điểm)