Lee and Vanessa studied hard for the exam.
Simple Sentence
Levi gave to his friend.
Fragment (Levi gave a book to his friend.)
We back home last summer
Fragment (We went back home last summer.)
In addition to English, speaking Spanish fluently.
Fragment (In addition to English, she speaks Spanish fluently.)
I went shopping yesterday and bought a new dress.
Simple Sentence
Because of my work hours.
Fragment (Because of my work hours, I get home late.)
Clean up your room!
Simple Sentence (command)
Marta and Juan play piano but don't play guitar.
Simple Sentence
Also, is a serious problem in my country.
Fragment (Also, it is a serious problem in my country.)
After finishing my homework.
Fragment (After finishing my homework, I went to bed.)