come true____

综合填空  阅读短文，用方框中所给词的正确形式填空，使短文通顺、连贯。方框中有两个为多余。

 Once upon a time, there lived a family of mice in the kitchen. One Saturday morning Father Mouse and his son felt hungry and ____  for food. ____ they were looking for food, they saw a big cat. Baby Mouse was very ____ and climbed onto his ____  back. Father Mouse shouted at the cat. “Woof, woof!” The cat ran away____  “Wow, dad, you’re great!”said Baby Mouse. “Well, son, that's why it's important to ____  a second language.”answered Father Mouse.

在“研究串联电路中电阻的规律”实验中，连接电路时电键必须处于____ 状态（选填“闭合”或“断开”），电流表必须____ 在被测电路中（选填“串联”或“并联”）。现用一电阻R来等效替代串联电阻R1和R2时，在电源电压不变的条件下，电路中的电流与原来串联电路中的电流是____ 的（选填“相同”或“不同”）。