---What are the police doing there? ---They are _______ the building. A robber ran into it just now.
-What are you doing ? -I am _____my dictionary. I want to ____the answer.
People often compare a teacher _____ a candle.
He was ____tired _____he fell asleep as soon as he lay down.
A Disneyland Park ______in Shanghai Pudong New Area in the near future.
Why didn’t you go to the party last night? – I __________.