I agree with Candace's suggestion of mixing the two. You can also just add some gravy to the dry, to soften it up a bit. Maybe buy a can of chicken broth, put a wee bit on and stick it in the microwave for 20 seconds.

After the first time, the chicken broth will be coming out of the fridge, and cats don' teat cold stuff, which is why you will need to heat it up a bit.

Softening the dry kibble is still better for the cat than the canned food only.

Good luck!

So sorry to read of the loss of your other kitty.