----- Nội dung dịch tự động từ ảnh ----- Question 18: Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. number/ Vietnamese student/ study/ overseas/ increase/ considerable/. A. The number of Vietnamese students studying overseas has increased considerably. B. A number of Vietnamese students study overseas has increased considerably. C. The number of Vietnamese students studying overseas have increased considerably. D. Number of Vietnamese students to study overseas has increased considerably.