Mark the letter A, B, C or D on your answer sheet to indicate the world(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
In England, schooling is mandatory for all children from the age of 5 to 16.
A. obligatory
B. voluntary
C. compulsory
D. advisory
Đáp án : B
Mandatory = bắt buộc = compulsory