----- Nội dung dịch tự động từ ảnh ----- Mark the letter A, B, C, D to indicate the word or phrase that is CLOSEST in meaning to the underlined part. 16. Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness. C. categorize A. record B. shine D. diversify 17. In the future, fathers may be externally employed or stay at home and look after their children. A. do extra work B. go out to work C. work full-time D. Work part-time
