1. (2021·天水) 阅读以下三则考试须知，根据其内容判断下列各小题的正误。

Poster 1

FINAL EXAM INSTRUCTIONS •Doors close 5 minutes before the exam begins. •Show your student ID card to examiner when you enter the room. •No phones, no books.

Poster 2

BEFORE THE EXAM •Have your ID card ready. •Listen to the instructions. • Arrive 10 minutes before exam. IN THE EXAM •Mobile phones switched off and put away. •ID card visible on the desk. •No talking. •No food or drinks in exam room.

Poster 3

• Follow the examiner's instructions. •If you have a question, raise your hand. •No mobile phones, books or bags in the exam. •Please use a blue or black pen.

1. （1） The first poster shows the instructions for a mid-term exam.
3. （2） In Poster 2, one who is taking part in the exam should arrive 10 minutes before the exam.
5. （3） In Poster 3, you can only use a black pen when having the exam.
7. （4） Not all the posters say something about ID card.
9. （5） "Mobile phones switched off and put away" means you can't have your mobile phone on the table.