in

There are several fresh apples in the wooden basket on the table.

(Chinese) 桌上的木篮子里有几个新鲜苹果。

The keys were left in the car, so we are locked out.

(Chinese) 钥匙忘在车里了，所以我们被锁在外面了。

The doctor is currently in and available to see patients.

(Chinese) 医生目前在诊室内，可以接诊病人。

Is Mr. Smith in? I have a delivery for him.

(Chinese) 史密斯先生在吗？我有他的快递。