问题补充:
Id like to know or not.
A. whether will he come
B. if he has come
C. whether he will come
D. that he will come
答案:
A. whether will he come
B. if he has come
(答案→)C. whether he will come
D. that he will come
解析:句意:我想知道他是否回来。结合语境可知从句描述的是将来的动作,故用一般将来时态。英语宾语从句一般是陈述语序。联系下文or not可知考察whether……or not结构,故选C。