IV. Identify the one underlined words or phrase that must be changed in order to make the sentence correct.
1. C. shorting for => short of (short of sth: thiếu hụt cái gì)
3. C. show => showing (Mệnh đề quan hệ rút gọn bằng cách dùng V-ing)
8. C. nature => natural (natural resources: tài nguyên thiên nhiên)