Устойчивое выражение have (has) ON - обозначает, что что-то на ком-то НАДЕТО,можно вместо has on везде написать is wearing (одет в настоящий момент)
1) Steve has a shirt with a tie, a coat and jeans on.
Bill has a shirt with a tie and jeans on. (можно добавить too - тоже)
2) John has a shirt and jeans on.
Ann has a dress on. (sarafan-это чисто русский вид платья, поэтому в англ языке такого слова нет, пишешь или платье (dress) или сарафан, но англ буквами) .
Stert has a shirt and jeans on.
Mary has a shirt and knee-breeches on.
1)It is important that we appreciate those who have outstanding traits of character.
2)Everyone should show consideration when they are listening to a lecture.
3)Everyone should be quiet and listen when someone is talking.
4)We must respect old people.
5)We must help each other to live in the society.
6)It is forbidden to kill rare animals because they can become extinct.
7)No one is allowed to pick flowers in other people's gardens because it can disappoint them.
8)We can't fly as we don't have wings.
9)It is prohibited to smoke in planes as it can make harm to other people's health.