介係詞的用法？

很多學英文的同學常會被介係詞所困擾，因為不知道怎麼用所以只好用直覺猜。有的人一猜就對，有的人怎麼猜都不會對，問題在哪裡呢?

(A)看以下的文章: 你可以填寫正確的介係詞嗎？

Gary and Alma were having problems, again.

"But you told me it was okay to call ____ Carol," said Gary. "I asked you if it was okay to talk to her, because it was her birthday and I've wished her a happy birthday every year ___ the last 10 years."

"But you had already promised me that you would never call her again. You promised me that. So, you lied____ me."

"But I had forgotten that I told you that. You know that I forget things. I'm not going to argue _____you; you have a memory like an elephant. But you've got to believe me, I completely forgot. And more important, Carol is just a friend."

"No, she isn't. She's still____love with you."

"But I'm not in love with her. She can love me all she wants, but I'm not in love with her. I never was!"

"Well, you say that. Maybe it's true. Maybe it isn't. But the important thing is that you never know what the future will bring. You say that nothing will happen between you and her, but you don't know that ______ sure, because you don't know the future."

"Yes, you're right. No one knows the future. I could fall ____ love with her again, and she and I might run _____ and get married and have nine or ten kids."

"Again? What do you mean 'again'?"

Ps. 請看答案，順便聽發音（右上角）。
http://www.eslfast.com/eslread/ss/s037.htm