大错误没有犯， 小错误没有断， 因为我们没有经验。
选项：

A:We haven’t made any major mistakes, we have made minor ones, because we have no experience.
B:Since we haven’t made any major mistakes, we have made many minor ones, because we have no experience.
C:As we haven’t made any major mistakes, we have made many minor ones, because we have no experience
D:although we haven’t made any major mistakes, we have made many minor ones, because we have no experience.