He is talking to his teacher about the project.

他正在和老师谈论这个项目。

同一单元的其他句子

• She gave the book to him and me.她把书给了他和我的。
• This is the house where I grew up.这是我长大的房子。
• Who are you waiting for at the station?你在车站等谁？
• The cat is hiding under the table in the kitchen.猫藏在厨房的桌子底下。
• I haven't seen him since Monday morning.我从周一早上就没见过他。