完形填空。从A、B、C、D四个选项中选取最佳答案。

    Bill is my friend. He has a happy 1. His father works 2 a hospital (医院) in Beijing. He usually  3 two eggs and a glass of milk 4 breakfast and then goes to work by car. His mother is an English 5 in our school. For breakfast, She usually eats some 6. Her English class is very  7, So we all love her. Bill is also my classmate. He eats a hamburger and two bananas for breakfast. He likes ice-cream very much. 8 his mother doesn't want him to eat it. She says it is not 9. And he can be very 10 if(如果 ) he eats a lot(很多).

Talk about the pictures           your partner.

①∠ABN=60°；②AM=1；③QN= $\frac{\sqrt{3}}{3}$ ；④△BMG是等边三角形；⑤P为线段BM上一动点，H是BN的中点，则PN+PH的最小值是 $\sqrt{3}$ ．

其中正确结论的序号是____．

我国最大的盐场和最大的渔场分别为（　　）