Find and Fix Past Modal Forms

Question 1

The emergency stairwell was the only exit, so staff must have has to use it.

Question 2

The numbered seal remained intact throughout transit, so the courier must have opened the case.

Question 3

With the tracker moving west, might the courier has been taking the coastal road?

Question 4

Because the court order required anonymity, the editors had to removed every name.

Question 5

The reviewer knew the check was missed and criticised it: “You may have checked the figures.”

Question 6

The trustee ought to have declare the conflict before the vote.

Question 7

We paid for express service, but delivery was no faster; we needn't have pay extra.

Question 8

The manuscript was ready, so Ava could have wrote to the publisher before the deadline, but she did not.

Question 9

Rather than speculate, she made a restrained reproach: “You may have warned us.”

Question 10

The door was left unlocked; trying to remain diplomatic, she said, “You might have locks it.”

Question 11

Neither applicant withdrew, but both are missing from the list; they must have been excludes.

Question 12

The inspection team was to have arrives on Tuesday, but the strike cancelled the visit.