Allen wanted to know after it got out of the UFO.
A. what is the alien doing
B. what the alien would do
C. where would the alien go
D. where the alien is going
网友回答
A. what is the alien doing
(答案→)B. what the alien would do
C. where would the alien go
D. where the alien is going
解析：考查宾语从句的使用。宾语从句的考查，主要是词序和时态。从句中应用陈述句的语序，排除A、C。主句为一般过去时态，从句也用过去的某个时态，故选B。