好几天没见你!
1 晚上8点在学校隔壁的咖啡厅等我
Wait for me at 8 tonight at the coffee shop next to the school （这个句型 at 8 tonight 放前比较通顺）
Wait for me at the coffee shop next to the school；8 o’clock tonight （口语形式可以省略at）
2 我们正在邮局对面的餐厅吃饭
We were/are having dinner/lunch at the restaurant across from the post office
3 他正坐在车站对面的台阶上
He’s sitting on the bench opposite the station
4 你看起来气色不好啊,身体不舒服么? / 病了吗?
You don’t look too good. Are you not well/Are you sick?
5 他正躺在沙发上玩手机
He is lying on the sofa playing with his cell phone.
6 他正坐在椅子上看报纸
He is sitting in the chair reading the newspaper
也可以说 sitting on the chair, 但 in the chair 比较好.