There are bedrooms in the building, so it ____ have been a temple. (might not, couldn't)
couldn't
15
The house is huge, so it _____ have belonged to the royal family. (must, could)
must
15
No one's ever found it. It _____ exist. (must not, might not)
must not
15
There are many jewels on this necklace. It ____ be very valuable. (might, must)
must
15
It ______ be in that cave. It's too high. (could/might, can't/couldn't)
can't/couldn't
15
We use the modal verbs can't/couldn't, must and must not if we are MORE SURE about the fact or the speaker has much more confidence in what is being said. (True, False)
True
25
However, it _____ have belonged to an important person at all. (might not, must)
might not
15
This house _______ have belonged to the royal family. (could/might, must)
could/might
15
But the treasure _____ even exist. (couldn't, might not)
might not
15
The lost treasure ______ be in a cave. (could/might, must)
could/might
15
We use the modal verbs could/might and might not if we are LESS SURE about the fact or the speaker is just guessing. (True, False)
