阅读短文，选择正确的选项。
Welcome to my classroom（教室）. There is a big desk for my teacher. Can you see blackboards? Yes, there are two blackboards in my classroom. There are twenty desks for the students. How many students are there in my class? Are there twenty? No, there are forty. Two students have one desk. There are four windows. At the window, there are twelve flowers. I like my classroom.
1．“Blackboard” means ________. ( )
A． | B． |
2．There are ________ blackboards. ( )
3．There are ________ desks. ( )
4．How many students are there in the class(班级)? ( )
| A．There are twenty. |
| B．There are forty. |
| C．There are thirty. |
5．How many flowers are there at the window? ( )
| A．There are twenty. |
| B．There are forty. |
| C．There are twelve. |
(看图补全对话） 
(看图补全对话)
(看图补全对话）
very fast. 
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