A-A+
At that time many readers found it difficult
问题详情
At that time, many readers found it difficult believing what Jules Verne had written in his book to be true.
A.found
B.it
C.believing
D.to be请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
C动词形式错误，应改为tobelieve。findit+adj.+todo是固定结构，此处的不定式是find的真正宾语，it是形式宾语。
