成人英语三级考试

【单选题】He had trouble (finding out) (that) the national park (lay) in the coastal area (or) in the mountains.


A．finding out
B．that
C．lay
D．or

网考网参考答案：B
网考网解析：
应改为连词whethers；whether…of…表选择“是否…或者…”。 查看试题解析出处>>