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There is no doubt ______ a large number of people have benefited from heart surgery.
There is no doubt ______ a large number of people have benefited from heart surgery.
admin
2019-06-25
58
问题
There is no doubt ______ a large number of people have benefited from heart surgery.
选项
A、whether
B、if
C、that
D、what
答案
C
解析
名词性从句题。在doubt,doubtful后面的名词性从句中,如果主句为肯定句,从句连接词为whether或if,如:I am doubtful whether he is still alive.(我怀疑他是否仍然活着。)在否定或疑问句中,从句连接词要用that,因此C正确。
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专业英语四级
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