Đọc đoạn văn sau và chọn đáp án đúng để điền vào chỗ trống: Ostriches are funny looking (13) birds. They can't fly, and they can't sing. They swallow rocks, and even diamonds if they happen to find any, to help them (14) ________ their food. They are also known for being very bad-tempered and will bite or kick their handlers if they have a chance. Their scientific name is struthio camelus, which means "sparrow" - camel. When travelers in the desert saw ostriches (15) at a distance, they sometimes thought they were camels.

Đọc đoạn văn sau và chọn đáp án đúng để điền vào chỗ trống: Ostriches are funny looking (13) birds. They can't fly, and they can't sing. They swallow rocks, and even diamonds if they happen to find any, to help them (14) digest their food. They are also known for being very bad-tempered and will bite or kick their handlers if they have a chance. Their scientific name is struthio camelus, which means "sparrow" - camel. When travelers in the desert saw ostriches (15) ________ a distance, they sometimes thought they were camels.

Đọc đoạn văn sau và chọn đáp án đúng để điền vào chỗ trống: It seems hard to (16) ________ that these birds would become an agricultural craze but they did. During the late 1800s and early 1900s ostrich farming was big business in South Africa.

There was a huge demand from all over the world for ostrich (17) ________ to decorate women's hats and clothing. Some hats were adorned with feathers more than 20 inches high.

At the height of the industry in 1913, there were 750,000 ostriches in one area of South Africa (18) ________ up to 100,000 tons of feathers a year.

South African economy as gold, diamonds, and wool. As is typical ________ people get rich quickly, there was some extravagance.

Đọc đoạn văn sau và chọn đáp án đúng để điền vào chỗ trống: The best ostriches were worth as much as some houses. Ostrich farmers became very rich and built elaborate mansions called "feather palaces" to show off their wealth. These palaces had marble floors, many towers and balconies, and huge bathrooms. However, with the start of World War I, (20) ________ changed. As a result, the demand for feathers fell quickly.

Many ostrich farmers were ________. They had to sell their mansions and their lives changed completely.

Ostriches ________ still farmed today in several parts of the world, but mainly for leather and meat. The ostrich business will probably never be as big as it was during those peak years.