In a room above the store, where a party______, some workers were busily setting the table.

________ one of my old friends while doing shopping in a supermarket，whom I hadn’t seen forten years.[ ]

The scientist was rewarded by the government for _____ such a great contribution to the country.[ ]

Have you ever been to Canada—No. I’d love to,_________.

I have many friends. I often play sports with_____.