补全对话一空一词.1.A:_ciacly!B:hi Bob 2.A:lm fine thank you how are you?3.B; _THANK you.
4.A:this in Engish?5.B:_a ruler.6.A:_it piease b:R-u-L-E-R ruler.A：what 7._is it?B:lt's red.