How about the pollution in the countryside?－Luckily, it’s not as serious as _______ in the big cities.

As we grow older,we learn theof our abilities.

）In the exhibition, all of us felt _________ to see so many _________ things.

I must be off at once. I’m late.— You ______ to the school because today is Sunday..

______ breakfast, I usually have an egg, some bread and a glass of milk.[ ]