He must have ___ the message; he replied.
Your answer: Unanswered
Correct answer: received
Completed sentence: He must have received the message; he replied. Modal deductions use must, may/might/could and can't according to certainty. Add be + -ing for present ongoing activity and have + participle for past deduction. Mustn't is normally prohibition. A past modal does not simply mean a less certain present modal.
She might be ___ from home today.
Your answer: Unanswered
Correct answer: working
Completed sentence: She might be working from home today. Modal deductions use must, may/might/could and can't according to certainty. Add be + -ing for present ongoing activity and have + participle for past deduction. Mustn't is normally prohibition. A past modal does not simply mean a less certain present modal.
That can't ___ true; the dates contradict it.
Your answer: Unanswered
Correct answer: be
Completed sentence: That can't be true; the dates contradict it. Modal deductions use must, may/might/could and can't according to certainty. Add be + -ing for present ongoing activity and have + participle for past deduction. Mustn't is normally prohibition. A past modal does not simply mean a less certain present modal.
They may have ___ the address.
Your answer: Unanswered
Correct answer: misunderstood
Completed sentence: They may have misunderstood the address. Modal deductions use must, may/might/could and can't according to certainty. Add be + -ing for present ongoing activity and have + participle for past deduction. Mustn't is normally prohibition. A past modal does not simply mean a less certain present modal.
The lights were off, so they ___ have been asleep. (possible)
Your answer: Unanswered
Correct answer: might
Completed sentence: The lights were off, so they might have been asleep. (possible) Modal deductions use must, may/might/could and can't according to certainty. Add be + -ing for present ongoing activity and have + participle for past deduction. Mustn't is normally prohibition. A past modal does not simply mean a less certain present modal.
