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

They won’t make new problems _________ you.[ ]

____ it is to play football on such a cool afternoon.

I’m sorry you didn’t have fun ______ your day off.[ ]

Is Lily good at singing? —Yes , she is．We often hear her_______ in the next room．