House of Porridge
    Welcome to Clark's Porridge House. We have different kinds of porridge. We have meat porridge, vegetable porridge. And fruit porridge is our special, it is only RMB 4 yuan for one bowl. A bowl of meat is RMB 5 yuan. Vegetable porridge is RMB 3 yuan for one bowl, but RMB 5 yuan for two. We have thin pancakes, too. They are RMB 5 yuan for ten. Come and taste the delicious food here. If you are too busy to come, make a telephone call to us and we can send the food to you in 20 minutes.
阅读以上信息，完成下面的句子，每空一词。

根据对话内容，从方框内选择恰当的句子填入对话相应的空白处，使对话完整，合乎情景(有两个多余选项)。
A：Hello，Mike! What's the time?
B：____ 
A：Where’s Bob? I can't find him.
B：I don't think he can come.
A：____ 
B：He has to look after his sister.
A：____ 
B：She doesn't feel well.
A：____  Did she go to see the doctor?
B：Yes．
A：____ 
B：The doctor said nothing serious，but she has to rest.

下列哪个光学仪器可以在光屏上形成倒立放大的实像                        (    )

正方形有____条对称轴，长方形有____条对称轴，圆有____条对称轴。