－Our teacher told us that the moon _______ around the earth.

－Linda was just going out shopping________the telephone rang.

－Our dining hall is always ________________ teachers and students at noon.

－Last semester, he had a hard time______ English.

－Did you tell Li Lei about the news?

－Oh, sorry. I forgot. Would you please pass____ him.

－How is everything going, Jack?

－________________

－The child is only 4 years old, he is not old enough to___ himself.    

－When will the sports meeting _______?

－Please ____ who broke the window.

Mr. Smith worked in a big computer company. He had no wife, and of course, had no child,   41  . He lived in an old house   42  . He liked nothing but drinking. He almost spent all of his money   43  drinks.

One night, Mr. Smith met a friend of his on his way home. The man asked him to have dinner in a   44 . He was happy and drank a lot. When they   45  the meal, Mr. Smith could hardly walk. His friend had to stop a taxi and asked the driver to take him   46 .

Soon the taxi arrived at Mr. Smith’s house. With the help of the   47 , he got out of the taxi.

“Thank you, sir,” said Mr. Smith. “And I can   48  the door by myself.”

The taxi driver then went away. But Mr. Smith couldn’t put the key into the key hole. He tried many times   49  he still failed. At that time, a policeman passed there.

“Can I help you open the door, sir?” asked the policeman.

“Thank you, sir. But I don’t think you can.” said Mr. Smith. “My house is circling (转圈) now. If you can stop it from   50  , I can open the door by myself.”