---How many elephants are there in the zoo?--- There aren’t _______.

—What’s the weather like outside?—It’s raining heavily . You’d better not go out.

—Did you find the small village yesterday?—Yes，without any difficulty，for it has ________ changed over years.

– Excuse me. Where is the bus stop, please?–I’m sorry. I don’t know the way, _______.

He has        work to do, so he can’t go with you.