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1.       
A proposal has
been made to trim the horns from rhinoceroses to discourage poachers; the
question is whether tourists will continue to visit game parks and see
rhinoceroses after their horns are trimmed.

(A) whether
tourists will continue to visit game parks and see rhinoceroses after their
horns are

(B) whether
tourists will continue to visit game parks to see one once their horns are

(C) whether
tourists will continue to visit game parks to see rhinoceroses once the animals’
horns have been

(D) if tourists
will continue to visit game parks and see rhinoceroses once the animals’ horns
are（C）

(E) if tourists
will continue to visit game parks to see one after the animals’ horns have been

这道题哪位大侠能否帮我讲解一下？谢谢啦

if 在这里是错误的使用。if在书面英文中只能用在condition里。所以排除D和E.

B中: ... to see one once their horns. one和their不相符

A比较tricky. 看起来还可以， 但是 and 在这里不是英文习惯。同时their指代不清，可以指rhinos 也可以指 前面的tourists.

C是对的。 continue to visit game parks to see rhinoceroses. .