问题
It’s hard to believe____ the way out of the forest without the help of the local guide.
A:what they were able to find
B:what were they able to find
C:how they were able to find
D:how were they able to find
B:what were they able to find
C:how they were able to find
D:how were they able to find
正确答案是：
同类题型
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