问题
It’s so careless of you to make a spelling mistake again.–Sorry. I couldn’t remember .
A:when I learnt the word
B:if I have learnt the word
C:where should I put the silent "t"
D:in which class did you teach the word;
B:if I have learnt the word
C:where should I put the silent "t"
D:in which class did you teach the word;
正确答案是：
