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Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Maths were one of his favourite subjects when he was at primary school.
A. were
B. his
C. subjects
D. at
Maths were one of his favourite subjects when he was at primary school.
A. were
B. his
C. subjects
D. at
Đáp án A. Sự hòa hợp giữa chủ ngữ và động từ : Maths là chủ nghĩa số ít nên were -> was
Đáp án A.