Here are 15 English-language short sentences for your morning social media posts on your friend's circle:

1、"Good morning, sunshine! Another day to make a difference."

2、"Waking up to a new day, feeling energized and ready to go!"

3、"The morning sun is shining brightly, reminding me to start the day with a smile."

4、"Every morning is a new opportunity to make the most of life's moments."

5、"Good morning, world! Let's make today a day to remember."

6、"The freshness of the morning air gives me a new sense of hope and purpose."

7、"Hello, morning! Let's make the most of this beautiful day."

8、"Wishing you a day filled with joy and happiness, good morning!"

9、"Morning, friends! Today is going to be a great day."

10、"Waking up to the sound of birds chirping, it's a beautiful morning."

11、"Each new morning is a chance to start again, let's seize it!"

12、"Morning! A fresh start is just around the corner."

13、"Hello morning light, bringing hope and energy to this new day."

14、"Enjoying the peaceful morning before the world comes alive."

15、"The sweet scent of coffee in the air and the gentle breeze of the morning - good morning everyone!"

These short sentences are all designed to express positivity and optimism in the beginning of a new day. You can mix and match or customize them according to your mood and your own unique style!