题目内容：

Peter wanted to know _________.
Peter wanted to know _________.
A.whether he has finished reading the book
B.why the boy had so many questions
C.that there were 12 months in a year.
D.when they will leave for Paris.

优质解答

B.
因为"wanted "是过去式,所以排除A,D
又因为C是客观真理,无论前面是什么时态,它都用一般现在时,所以也排除
最后得出选B