口语交际.根据上下文提示，在下面对话的空白外填入适当的话语（话语可以是句子、短语或词），使对话完整.

(Sam and Ted are talking on the phone.)

Sam: Hello, this is Sam,____ 

Ted: Hello, Sam! It's me, Ted. This term is over. I'm going to see my grandparents.

Sam: Oh, really?____ 

Ted: They live in Shanghai.

Sam:____ 

Ted: I'm going there by train.

Sam: How long does it take?

Ted: About 8 hours.

Sam: Who will meet you at the station?

Ted: My uncle.

Sam:____ 

Ted: It's quite hot and rainy.

Sam: You'd better take an umbrella and some thin clothes.

Ted: Yes, I will. By the way,____ 

Sam: I've no idea. Maybe my parents will have a plan.

 Ted: OK, see you.

“测量小灯泡的电功率”实验中，电源电压为6V保持不变，小灯泡的额定电压为2.5V，小灯泡的电阻约为10Ω．

在观察“食物中含有无机盐“的实验中，如果燃烧的是富含脂肪的花生种子，实验结果和原因是（    ）