Đề thi học kì 1 lớp 6 môn tiếng Anh số 5

It is difficult to know how many (1)______ once lived in the continent, but there may have been at least 3-5 million elephants in Africa in the early part of the twentieth century. People have always hunted elephants for meat, hides, and ivory. Since (2) ______ human population grows and weapons (3)______ more advanced, elephants are under greater (4) _____. In the late 1970s and early 1980s there was a huge decline in the number of elephants due to the increase (5) ______ poaching. It is estimated that there are now about 500,000 elephants and they are restricted to only some particular countries.