II. Choose the correct word A, B, C or D for each gap to complete the following passage. Today, computer companies sell many (1) ______ programs for c

II. Choose the correct word A, B, C or D for each gap to complete the following passage. Today, computer companies sell many (1) ______ programs for computers. First, there are programs for (2) ______math problems. Second, there are programs for scientific studies. Third, some programs are (3)______fancy typewriters. They are often used by writers … Đọc tiếp