A is wrong, too. Here is the correct A and restatement:
A: If we didn't have earthquakes or typhoons, our country would be easy to live in. C: Without earthquakes and typhoons, our country would be easy to live in.
---Hi, Macauber. How about "Without earthquakes or typhoons, our country would be easy to live in."? Is it wrong? And how about "If we didn't have earthquakes and typhoons, our country would be easy to live in."? Also wrong?
---Hi, Macauber. There is one more thing I'd like to ask about the following 2. A: I don't keep cats and dogs. B: If I don't keep cats and dogs, ------
I think A means "I don't keep both cats and dogs." that is, I keep either cats or dogs. So how about B? Does B mean "If I don't keep either cats or dogs, (If I keep neither cats nor dogs---)" or "If don't keep both cats and dog
. Without diddling with logic, and failing specific context to the contrary, both A and B mean to the normal native speaker that you have no pets of either sort.