Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

Ms. Kim has been working as _______ teacher of English for 20 years.

Đáp án
C. a

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 1 - VŨ MAI PHƯƠNG