The advanced entire production process is paperless and much faster than that of ______ factories.

You’re not welcome by your classmates ______ the way you communicate.

Do you know which is______ longest river in the world

I saw Sam and David in the playground yesterday afternoon. They games with their classmates then.

Jack used to give most of his money to people in trouble. How do you like him —Some thinks he might be kind of _______. But more people are grateful to him.