29.The orbit of a celestial body is usually in the shape of ellipse.
D错,是不是应该改成of an ellispe呢?如果是,为什么,偶还不是特别明白?...
36.It took more than fourteen years to carve the faces of four United States Presidents into the cliffs to Mount Rushmore, South Dakota.
D错,是不是应该改成of呢?
39.Lowell, Massachusetts, known as the "Spindle City" since 1822 when its first textile mills were built, attracted worldwide attention as textile center.
也是D错.是不是改成as a textile呢?这个地方我一直搞的不是特别明白.有时候,as后面不是不加a或者an了嘛?
哪位大侠可以帮帮我的啊?先谢谢了...
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