Answer: C) Can participate.
Explanation for this question is being written.
Answer: B) Could
Answer: C) Could
Answer: B) I can play tennis very well.
Answer: B) Can
Answer: C) Couldn't
Answer: A) Can
Answer: B) Won't be able to.
Answer: B) Were able to.
Answer: A) Can't
Answer: A) Could
Answer: A) Play
Answer: B) Can't
Answer: B) Cannot
Answer: C) Can
Answer: D) Could
Answer: B) Correct
Answer: D) I can't find my sister. Where is she now?
Answer: C) Can't
Answer: B) Able to.
Answer: A) Cant
Answer: B) A fact about the past.
Answer: C) Can't be.
Answer: D) You can go by bus.
Answer: B) Can you.
Answer: A) Can play.
Answer: A) Get
Answer: A) Be
Answer: B) No, it cant.
Answer: C) Could not.
Answer: B) COULD