阅读理解。

Lifts are very useful. Why?Think about a tall building. You work on the thirtieth fIoor. Maybe you can 

walk up all the stairs one time. But can you climb thirty floors to your office every day? Of course not.

In an old lift, a worker is needed. He or she operates it up and down, In a modern lift , there is no worker. People can operate it themselves.

Do you know how to use a lift? Ok, let me tell you. For exarnple, you want to go to the twelfth floor from  the ground floor. First, you must press the button(按键) then the door opens. After that you can get

into the lift. Third,you press the , and the door closes. Fourth ,you press the number, then the lift

takes you up to the twelfth floor. When the door opens again, you can get out of the lift. If you want to go

down to the first floor, you must press the , then do the same. It takes you down there. It is very easy

and fast, Now can you use it?

根据短文内容,判断下列句子正误.正确的在括号内写"T",错误的写"F"。

( )l.  In a modern lift,people can operate it by themselves.

(     ) 2. If you want to go upstairs , you must press the .

(     ) 3. If you want to go down to the first floor ,you must press the.

(     )4.  In a tall building, it is very easy and fast for you to go up and down in a lift.

(     )5.  Lifts are just used for the old people to go up and down in a tall building.