180. The monkey came down and _______ onto the elephants back.

Please get prepared. The guests are _______ to arrive in half an hour. [ ]

_______the competition in society is becoming fiercer and fiercer, more and more people turn to ______ drugs to reduce their pressure.[ ]

一Is Mr. Wang at home I have something important to tell him. 一No, he isn’t . He America. He will come back in a week.

We are now in the age of great changesEverything sometimes ________ before it is felt