There is a real possibility that these animals could be frightened, ____ a sudden loud noise.
The girl ___ in front of me kept laughing and crying.
--Do you hear a fire ___ last night?---Yes, it __ by the firemen in no time.
What he said sounds ___.
--What’s ___ at the theatre this evening ?---It's ____ Comrade Leifeng.
When he was ten, Edison ___ a small lab of his own.