Hello, may I speak to Mr Green , please—Sorry. He ________ a meeting. Can you call him later

Mr. Hu, can you tell us how to learn swimming well—Sure. But remember we can learn nothing well _______ hard work.

Shall we go to the amusement park right away or next weekend — Any .time will do.

Some of my friends eat with their eyes. They prefer to order what _____ nice. What about you— I think it’s good to eat some fresh vegetables.

More and more fast-food restaurants have _____ all over the town in the last few years.[ ]