Listen! The fire engine is roaring! (消防车吼叫)— Oh, there ______ be a fire somewhere.How terrible!

She has lost all ______ of direction in her life. She is now so puzzled(困惑的).

March 8th is _________ Day

Manyexperts believe that teachers’ development is _______ the key to bettereducation lies

Emergency line operators must always _____ calm and make sure that they get all the information they needto send help.[ ]