Помогите !! Не нужно решение просто объясните надо добавлять окончание s в словах которых надо писать в столбике ?

walls.

You can't keep pets in the rooms.

You can't have parties in your room at any time.

Common room

You can use the common room but you must get permission to invite friends or have parties.

You can decorate the common room but you mustn't move the furniture.

You can't use the common room after 21:00 on weekdays.

Dining hall

You mustn't come to the dining room barefoot.

You mustn't remove food from the dining room.

Outdoor areas

You mustn't park your bike in the garden.

You must cycle carefully.

You can't take your bike inside the school buildings.

You mustn't feed the squirrels or the birds.

Visitors

You must always register your overnight guests at the Accommodation Office.

Guests can't stay for a period longer than

In Malaysia, parents don’t seem to have enough money to pay for their children’s education in the universities or college. (0) So, by working part-time, children can help their parents. (1)_____, by doing part-time jobs, students can earn their own money. (2)______, they can learn to be independent. This will help them when they grow up in the future.

InJapan, about 30% of teenagers wok part-time. Some of them have to work to make money for college. (3) _____, most students who have jobs want to spend money just for fun. They work to buy things (4)______ clothes, electronic products and groceries.

In my country, it is not so common for teenagers to work. Some teenagers, (5) _____, want to work to help their parents to pay for the education. Some take part-time jobs after school (6)______ they want to become economically independent from their parents. (7) _____, they want to earn money to buy some things they want.

Teenagers are independent of their parents. (8)_____, they will value what they have now.

What I want to say is (9)____ working part-time has some bad points for students, it is also gives them valuable experience for whatever they do later in life.

Teenagers can work (10) _______ they have time to prepare their homework well.

Слова, которые нужно вставить в пропуски:

Although

as long as

as the same time

because besides

but

for example

however

moreover

on the other hand

so

such as

what’s more