Question

— Do you know about the Japanese nuclear crisis(核危机)?
— Yes. I know           .

A．how are they dealing with it	B．what it has caused
C．how terrible was it	D．how long will it last

Answer 1

B

本题know后跟的是一个宾语从句，应该用陈述顺序，故选B,ACD都是疑问顺序。