A. She can swim well.
B. He runs every day.
C. They are playing.
D. I read a book.
Answer: She can swim well.
A. She can swim well.
B. He runs every day.
C. They are playing.
D. I read a book.
Answer: She can swim well.
Additional Information: 'Can' is a modal verb indicating ability.
Subjects: Verbs, Parts of Speech