Hey, I play only with my chess programs. The problem is I that there are 4 openings I don't know how to play against them!!! Those are

1) Modern Defence 1. d4 d6....

2) Opening 1. d4 d5 2. Nbd2....

3) Debut Alapin 1. e4 e5 2. Nge2....

4) Central Gambit 1. e4 e5 2. d4....
a) accepted ...ed
b) disaccepted ...?

So could you write me a few variants for all these 4 openings. I don't know how to counteract my com!!!! I have enough literature about the chess theory.

Please help me out!!!