Peter forgot to tell you when .
A. did he call you up
B. he called you up
C. did he call up you
D. he called up you
网友回答
A. did he call you up
(答案→)B. he called you up
C. did he call up you
D. he called up you
解析：英语宾语从句中一般用陈述语序，当人称代词作动词短语宾语时，注意要放在动词后面介词前面。结合语境可知选B。