题干
I don't remember___________ to the airport that year.
A：to be take
B：being take
C：having
D：to take
答案(点此获取答案解析）
B
A：to be take
B：being take
C：having
D：to take
，且横、纵截距的绝对值相等的直线的条数为 （ ）
