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

The man knows a lot about this field as he’s a(n) ______________ worker.

A. elderly

B. veteran

C. educational

D. generous

Đáp án
B. veteran

Câu hỏi thuộc Bài tập:

E10- I-learn- Unit 4 (2)