I would appreciate you could give me some advice on learning English.
A. it whether
B. it if
C. that when
D. that if
网友回答
A. it whether
(答案→)B. it if
C. that when
D. that if
解析：B 考察宾语从句。在英语中，当enjoy，like, love, prefer, appreciate, hate, dislike等表示情绪的动词后面接what或者if从句的时候，通常使用it的形式宾语。