在横线上填入适当的单词,把对话补充完整,单词的首字母已经给出.
A:Hi,Bob.How are you?
B:I'm OK now b__ I was crared yesterday afternoon.
A:Why?What h_______?
B:I h____ a loud noise at 4:00.It was the fire alarm.
A:Oh,no.What did you do?
B:W____ I heard the sound,I went d___ the stairs quickly.
A:What about your mum and dad?
B:My mum w__ at the supermarket and my dad was a_____ work.
A:Then w____ happened?
B:Then I waited o_____.Iwas scared but I didn't see any smoke.
A:Did you c____ 119?
B:No.
A:When there's a fire you should call 119.
B:I know but the fireman were there already.There was no fire.In fact,it was just a drill.