老师让我们用铅笔写字。

Lǎoshī ràng wǒmen yòng qiānbǐ xiězì.

The teacher asked us to write with a pencil.

老师让我们用铅笔在本子上写名字。

Lǎoshī ràng wǒmen yòng qiānbǐ zài běnzi shàng xiě míngzi.

The teacher asked us to use a pencil to write our names in the notebook.

桌子上有很多彩色铅笔。

Zhuōzi shang yǒu hěn duō cǎisè qiānbǐ.

There are many colored pencils on the table.