Answer: C) Must
Explanation for this question is being written.
Answer: C) Must have caused.
Answer: C) Can't have finished.
Answer: A) Must have felt.
Answer: B) Modal verbs play a crucial role in expressing different degrees of certainty, obligation, and ability in the design process.
Answer: B) Must have.
Answer: D) Linda must have been very upset when you left.
Answer: C) Must have come back.
Answer: C) Must have done.
Answer: A) Must have lied.
Answer: C) All tenses, including perfect tenses.
Answer: A) Must have.
Answer: A) She must have passed the exam.
Answer: C) Must have had.
Answer: C) Must have been.
Answer: A) Have made.
Answer: A) Must have been.
Answer: B) Must have forgotten.
Answer: C) Can't have gone.
Answer: A) Must have tried.
Answer: A) Must have rained.
Answer: A) Was due to leave.
Answer: D) Must have.
Answer: C) C must have.
Answer: B) Must have thought.
Answer: C) Must have been embarrassed.
Answer: A) Have behaved.
Answer: D) Must have been left.
Answer: C) Must have gone.
Answer: B) Must have taken.
Answer: A) Was supposed.
Answer: B) Were to have been.
Answer: B) Couldn't have known.
Answer: D) Couldn't have forgotten.
Answer: D) Must have had.
Answer: A) Never
Answer: A) Must have practised a lot.
Answer: A) Must have forgot.
Answer: D) Must have revised.
Answer: A) Can't have told.
Answer: A) Must've taken.
Answer: C) BEEN
Answer: C) He must have known all about the secret because he was there when we were talking.
Answer: B) Can't have.
Answer: A) Must
Answer: C) Can't have seen.
Answer: A) Can't have gone.
Answer: C) He must have studied very hard.
Answer: C) Must have uploaded.
Answer: B) Have
Answer: C) Must have.
Answer: D) Have been playing.
Answer: C) We must have taken the wrong turn.