Opportunity, possibility, chance or option

You’ll have the (a)   to ask any questions at the end.

As I see it, we have two (a)   .

She has only a slim (a)   of passing the exam.

Bankruptcy is a real (a)   if sales don’t improve.

At least give him the (a)   of explaining what happened.

Selling the house is just one (a)   that is open to us.

I had no (a)   but to ask him to leave.

The operation has a fifty-fifty (a)   of success.

There will be plenty of (a)   for relaxing once the work is done.

There's a slight (a)   that he'll be back in time.