他慢慢地走进教室。

Tā mànmàn de zǒujìn jiàoshì.

He slowly walked into the classroom.

她高兴地笑了。

Tā gāoxìng de xiào le.

She smiled happily.

请认真地听老师说话。

Qǐng rènzhēn de tīng lǎoshī shuōhuà.

Please listen carefully to what the teacher says.