Answer: B) I have been studying for three hours.
Explanation for this question is being written.
Answer: D) The action of playing football started in the morning and is still continuing.
Answer: C) Have been living.
Answer: C) Have been writing.
Answer: D) Is really improving-has been watching.
Answer: C) Has been playing.
Answer: C) Since 2018.
Answer: A) Present Perfect Continuous Tense.
Answer: A) Have been reading.
Answer: A) Present perfect continuous.
Answer: C) Has been living.
Answer: D) For three years.
Answer: C) Been doing.
Answer: D) Has been sweeping.
Answer: C) Have been planning.
Answer: C) Has been doing.
Answer: B) We have been enjoying the holiday.
Answer: C) Has been raining.
Answer: A) True
Answer: C) Acting
Answer: C) Have been negotiating.
Answer: C) Have been playing.
Answer: C) Hasn't been cleaned.
Answer: B) Hasn't been learning.
Answer: C) Has been exercising.
Answer: C) Tense:present, Aspect:progressive, Time:past, present (future).
Answer: A) Has been being recorded.
Answer: A) Have you been waiting.
Answer: B) Has been.
Answer: B) 've been sunbathing.
Answer: C) Present Perfect Continuous.
Answer: A) I have been standing.
Answer: C) Present perfect continuous tense.
Answer: C) Have
Answer: C) She has been studying all day.
Answer: A) Has/been studying.
Answer: D) Have been cleaning.
Answer: A) Have been walking.
Answer: D) Have been playing.
Answer: D) Has / been waiting.
Answer: C) Have been searching.
Answer: B) Has she been writting this article?
Answer: B) Has been raining.
Answer: A) 's been crying.
Answer: A) Has been scratching.
Answer: A) Either
Answer: C) Been
Answer: A) I haven't been waiting.
Answer: C) Has been using.
Answer: B) Have been waiting.
Answer: D) Has been working (b) has planted.
Answer: A) Have been living.
Answer: B) Been talking.
Answer: C) Haven't been.
Answer: C) It has been raining all morning.
Answer: B) 's been living.
Answer: B) Have already.
Answer: B) They have been playing.
Answer: A) 've been looking / haven't found.