问题
选择题
Some of my friends are interested in science,but none of them can tell_____.
A．when UFOs will appear next time.
B．why do horses know the way.
C．where was this kind of plant found.
D．how do elephants communicate.
答案
答案：A
题目分析：句意：我的一些同学对科学感兴趣，但是他们没有人能讲出下次UFOs将何时出现。宾语从句如果是特殊疑问，那么特殊疑问词要放在宾语从句的句首，后面+陈述句的句序结合语境可知选A。