Write a story of two best friends who surprised their parents.
end your story with:
" they looked at each other and smiled meaningfully."

Maybe you can start your story writing with a suitable title as "A friend in need is a friend indeed ".

Explanation:

The story starts as there are two good friends named Zayn and Justin . Zayn is a brilliant and hardworking student but Justin is very lazy and a poor student, so zayn parents are happy with him but Justin parents aren't much happy with his performance in the examination . So looking all this zayn decided to help his friend and make him a hardworking and brilliant student like himself so he kept on motivating and inspiring him and after few weeks test were taken and by the grave of the god bith zayn , Justin stood first with good grades and performed very nice in the examination. Looking all this changes his friend thanked him and they both looked at each other and smiled meaningfully .

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).