Some things you may find in your bag

Read the descriptions of some things you may find in your bag.
What is the word for each description?
The first letter is already there.

Example:
0. You use this to write with
p

1. If you lose this, you won't be able to get into your house.
k _ _ (2 ký tự)

Để tiếp tục học, xin mời đăng nhập hoặc đăng ký tài khoản.