Nowadays Wechat is____used by people for communicating, sharing, chatting, and so on.

I think the lives of children in poor areas_____ greatly by this project.

He made the suggestion that we _____ bytrain.

can’t trust your friend to have a relationship with another person you consider a friend, it’s a clear ______ of a problem in your friendships.”

Though he stays at home ________, he doesn’t feel ________.