There was less food for birds and also for the Prairie dog, an ____holes in the ground.
However, at times this balance in nature is disturbed, _ ___ a number of possibly unforeseen effects.
.— I ____ to your birthday party last Sunday. — Unfortunately, you were out on business.
— Joan was badly injured in the accident yesterday and she was sent to hospital. — Oh, really? I ____. I ____ visit her.
— It’s getting dark earlier than before, isn’t it? — Yes. I think so. I see ____ is on already.
— What do you think of the price of these computers?— They are at least equal in price to, if not cheaper than, ____at the other companies.