Read and judge.读一读，判断，正确的画(√)，不正确的画(×)。
题型：判断题
问题：
Read and judge.读一读，判断，正确的画(√)，不正确的画(×)。
( )1.I write a letter on paper.
( )2. You can put the stamp in the top, left corner.
( )3.I don't need a stamp when I write an e-mail.
( )4. You can write a postcard with a pen.
力的大小