2 sentences

1. 填表时，请在性别栏的“男”字后面打勾。

   tián​biǎo shí, qǐng zài xìng​bié lán de“ nán” zì hòu​mian dǎ​gōu.

   When filling out the form, please check the box next to 'Male' in the gender column.

   Source: Dong Chinese Dictionary

2. 填表时请看清楚，不要把这一项落空了。

   tián​biǎo shí qǐng kàn qīng​chu, bù yào bǎ zhè yī xiàng là​kòng le.

   Please look carefully when filling out the form; do not leave this item blank.

   Source: Dong Chinese Dictionary