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

It is advisable to follow experts’ ______________ on the treatment of COVID-19 patients.

Đáp án
C. guidelines

Câu hỏi thuộc Bài tập:

E10- I-learn- Unit 6 (2)