---Do you mind opening the window?the air inside is not so fresh.--- __________, Mr. Smith is taking a nap (小睡),don’t make him catch a cold.
— We can sell the waste for recycling such as glass, paper and metal. — ____
We should buy things ____ locally.
It’s impossible ____ a taxi on such a rainy day.
____ to the meeting on time tomorrow. It’s very important.
It’s hopeless to finish the work today, ____?