Answer: B) Has been working.
Explanation for this question is being written.
Answer: B) Present Perfect Continuous.
Answer: D) Have been doing.
Answer: A) Present perfect continuous.
Answer: C) Has been.
Answer: A) Present perfect continuous tense.
Answer: C) How long have they been doing their task?
Answer: B) Have / been studying.
Answer: C) Have been.
Answer: B) My dad has been fixing the car all morning.
Answer: A) Has been waiting.
Answer: A) Has
Answer: A) Have been.
Answer: A) Has been.
Answer: D) Present Perfect Continuous Tense.
Answer: B) Has been waiting.
Answer: C) Has been raining.
Answer: C) Have been studying.
Answer: B) Has / been.
Answer: B) Yes, I have been reading books.
Answer: D) Have been working.
Answer: B) Have been playing.
Answer: B) Will have been living.
Answer: B) Have you been saving.
Answer: D) Have been filling / for.
Answer: A) Have been waiting.
Answer: B) E has been donating to rhino conservation organizations for five years.
Answer: A) Hasn't been washed.
Answer: B) Have you been doing.
Answer: A) Have been, for.
Answer: A) True
Answer: D) Have been traveling.
Answer: D) Have been waiting.
Answer: A) Present Perfect Continuous Tense.
Answer: A) Have had to wear.
Answer: C) Have been watching.
Answer: C) Has been washing his dog.
Answer: A) Been painting.
Answer: C) Been falling.
Answer: A) Have been married.
Answer: D) Have been sleeping.
Answer: D) Have been cleaning.
Answer: B) Has been used.
Answer: C) We have been writing to each other for eight years.
Answer: D) Have been livingTagsTense.
Answer: C) Have you been modeling.
Answer: B) They have been working hard to find the vaccine.
Answer: C) Have you been watching.
Answer: D) Present perfect continuous tense.
Answer: A) Has been implemented.
Answer: B) Has been sleeping.
Answer: A) Present Perfect Continuous.
Answer: B) Has been speaking.
Answer: A) Been wanting this.