1. 我马上回来。

[ wǒ mǎ shàng huí lái 。 ]

I'll be back soon.

2. 我马上就到。

[ wǒ mǎ shàng jiù dào 。 ]

I'll be right there.

3. 你认为你马上就能睡着吗?

[ nǐ rèn wèi nǐ mǎ shàng jiù néng shuì zhuó ma ? ]

Do you think you'll be able to go to sleep fight away?