7 sentences

1. 支票上的金额是大写贰仟圆。

   zhī​piào shàng de jīn'é shì dà​xiě èr qiān yuán.

   The amount on the check is two thousand yuan in formal capital letters.

   Source: Dong Chinese Dictionary

2. 支票上的大写金额需写成肆万圆。

   zhī​piào shàng de dà​xiě jīn'é xū xiě​chéng sì wàn yuán.

   The amount in words on the check must be written as Forty Thousand Yuan.

   Source: Dong Chinese Dictionary

3. 这张支票的大写金额写的是陆仟元。

   zhè zhāng zhī​piào de dà​xiě jīn'é xiě de shì lù​qiān yuán.

   The amount written in characters on this check is six thousand yuan.

   Source: Dong Chinese Dictionary

4. 支票上的金额必须大写为叁仟元整。

   zhī​piào shàng de jīn'é bì​xū dà​xiě wéi sān qiān yuán zhěng.

   The amount on the check must be written in formal numerals as 'Three Thousand Yuan Exactly'.

   Source: Dong Chinese Dictionary

5. 在填写支票时，数字九必须写成大写的“玖”。

   zài tián​xiě zhī​piào shí, shù​zì jiǔ bì​xū xiě​chéng dà​xiě de“ jiǔ”.

   When filling out a check, the number nine must be written in the formal capital form '玖'.

   Source: Dong Chinese Dictionary

6. 支票上的金额必须同时写明小写和大写。

   zhī​piào shàng de jīn'é bì​xū tóng​shí xiě​míng xiǎo​xiě hé dà​xiě.

   The amount on the check must be written in both figures and words.

   Source: Dong Chinese Dictionary

7. 请把这个单词的首字母大写。

   qǐng bǎ zhè gè dān​cí de shǒu​zì​mǔ dà​xiě.

   Please capitalize the first letter of this word.

   Source: Dong Chinese Dictionary