3 sentences

1. 他走上前去和老朋友握手。

   tā zǒu shàng​qián qù hé lǎo péng​you wò​shǒu.

   He stepped forward to shake hands with his old friend.

   Source: Dong Chinese Dictionary

2. 请上前一步。

   qǐng shàng​qián yī bù.

   Please step forward.

   Source: OpenSubtitles

3. 他只是站在那里旁观，并没有上前帮忙。

   tā zhǐ​shì zhàn zài nà​li páng​guān, bìng méi​yǒu shàng​qián bāng​máng.

   He just stood there looking on and didn't step forward to help.

   Source: Dong Chinese Dictionary