He asked me whether I liked English or French .
由whether / if 引导的宾语从句－－－当从句是一般疑问句，选择疑问句或反意疑问句时，用whether / if引导宾语从句,并且要把疑问的语序变为陈述的语序．一般情况下，whether / if可以替换．但下面四种情况，只能用whether引导宾语从句．
He asked me whether / if I liked my job .
I want to know whether / if you'll come to the party .
(A) 当句子中出现 or not 时，必须用whether引导宾语从句
I want to know whether or not you like me .
I want to know whether you like me or not .
(B) 当主句的谓语动词是由”动词＋介词”构成的短语时，必须用whether引导宾语从句
They're talking about whether they'll go there.
(C) 当宾语从句为了起强调作用，放在句首时，必须用whether引导宾语从句
Whether you like me , I want to know .
(D) 当 if 容易引起歧义时，必须用whether引导宾语从句
Please let me know if you like it . (宾语从句， if =”是否”）
Please let me know if you like it . （条件状语从句, if = ”如果”）
温馨提示：答案为网友推荐，仅供参考