84.What should you do when you suddenly hear shouts of“fire” and smell smoke t　　　　 　the door?

83.Li Ming can find many new things that we don’t know on the Web, and he’d like to s　　　　 　them with all of us.

82.The Red Army men walked a long way and their shoes were all w　　　　　 　out.

81.Now computers are w　　　　　　 　used in our office.

80.The plane flew higher and higher. At last it d　　　　 　in the sky.

79.Some scientists said,“If you often go running alone in the morning, it would become b　　　　 　

for your brain, you’d better run with your friends.”

78.When I told them the funny jokes, they couldn’t help I　　　　　 .

77.The Yellow River, the world’s f　　　　 　longest river, has watered some of the oldest farms on Earth.

76.I didn’t have my breakfast this morning. Now I feel so h　　　　 　that I want to do nothing.

75.Yesterday the teacher told us the earth r　　　　 　around the sun.