If you (ask) (a)   me, I would have helped you.

If we had gone to the cinema, we (see) (a)   my friend Jacob.

If you (speak) (a)   English, she would have understood

If they had listened to me, we (be) (a)   home earlier.

I (write) (a)   you a postcard if I had known your address.

If I had not broken my leg, I (take part) (a)   in the contest.

If it had not start to rain, we (walk) (a)   to the museum.

1. We (swim) in the sea if there had been so many sharks there.

(a)  

If she had taken the bus, she (not / arrive) (a)   on time.