1- Does a postman deliver mail ? Yes, he

.
2- Do firefighters deliver mail ? No, they
.
3- Do waiters and waitresses work in bars and restaurants ? Yes, they
.
4- Does the cook prepare meals ? Yes, he
.
5- Does the waitress cook ? No, she
.
6- Do detectives investigate ? Yes, they
.
7- Does a secretary answer the phone ? Yes, she
.
8-
she type letters ? Yes, she does.
9-
a saleswoman look after patient ? No, she
.
10-
mechanics repair cars ? Yes, they
.