补全对话

Amy: Hello, Lingling. ____ is Amy speaking.

Lingling: Hello, Amy.

Amy: ____ are you?

Lingling: I am ____. Thank you.

 Amy: ____ you at home yesterday?

Lingling: No, I wasn't.  I was____with Sam.

Amy: Were you at the zoo?

Lingling: Yes, we were.

关于能量和能源的利用，下列说法中正确的是（　　）

    Mr. Smith is telling two funny stories of his police work.
Story A
    I remember catching a “thief” in a clothes shop once. It was strange. The man was hiding a yellow sweater inside his coat. I thought he had stolen it, so I caught him. We found later that his wife gave him the sweater for his birthday, but he hated it. He just wanted to return it to the shop for money, but he didn't want his wife to see him! We soon let him go. 
Story B
     Another day, a man called Bob went into a bank on Sixth Street. He wrote on the back of an envelope, “Give me the money! Or I'll kill you. ” and gave it to the bank clerk. She gave him $100,000 and the man ran away. Then we received a phone call from the bank clerk. She told us to go to the man's house in Candy Town and get him. We caught him as soon as he got out of the elevator. He couldn't believe that we found him so quickly. We told him that the front of the envelope he used had his name and address on it! 

写出下面词语的反义词。

上 ____ 来____  东____  左____

设底部为等边三角形的直棱柱的体积为V，那么其表面积最小时，底面边长为（　　）