1.Ann didn't pass the exam once _____.2.I learned _____ to drive a car,Dad.

问题描述:

1.Ann didn't pass the exam once _____.2.I learned _____ to drive a car,Dad.

1.again
once again 再次
2.how
how to do sth.如何做某事
不明白的再问哟,请及时采纳,多谢!