B1+ U5

"I got sunburnt on holidays!" / "Oh wow, it (must / can't) have been hot!"

"I can't believe I failed the test again." / "Well, you (must / can't) have studied too hard."

"She (must / can't) be bored, she's been listening closely to every word of the lecture"

Unlock this slideshow and over 4 million more with Baamboozle+