“________ in love with each other?”“Sorry, I don't know.”

[　　]

“________ in love with each other?”“Sorry, I don't know.”

[　　]

---Did you fall in love with that girl _____ you met her?
---Yes. Now we lead a happy life.

 ---Did you fall in love with that girl _____ you met her?

---Yes. Now we lead a happy life.

A．for the first time                        B．the first time

C．first time                              D．by the first time

---Did you fall in love with that girl _____ you met her?
---Yes. Now we lead a happy life.

1. A.
   for the first time
2. B.
   the first time
3. C.
   first time
4. D.
   by the first time