When did the Greens come to China—They_____ China for seven years.

_______ a hot summer afternoon, Tom goes boating with his cousin in the river near his house.

“Wechat”(微信) really makes a great _______ to people’s life. It’s easy for us to keep in touchwith others.

Lanzhou is the only capital city that the Yellow River, the second ________ river in China, passes through.

Nancy had to shout to make herself _____ above the sound of the music[ ]