Situations
John has just arrived and his clothes are wet.
It _____ be raining.
MUST
I'm pretty sure it's expensive.
It must be expensive.
There's a Masterchef logo on the box.
It must be food.
A
There must be a probem.
They could be watching a sad movie.
They can't be celebrating.
He's wearing a suit and smart shoes.
X3
TRIPLE POINTS
He could be a manager, an office employee.
He looks like Tom, but Tom's flight lands tonight.
That man _____ be him.
CAN'T
It's impossible that she's here.
X2
DOUBLE POINTS
She can't be here.
It's a big box, but it's not heavy.
It says "FRAGILE".
It clings if a shake it gently.
There may be glasses.
(could / might)
B
It must be somewhere in Asia.
It could be market day.
It can't be a regular day.
She's wearing a turnout coat with oversized pockets to carry tools and equipment. The coat has reflective safety stripes for her to remain visible.
She could be a firefighter or a first aid rescurer.
(may / might)
Look at them laughing.
Someone _____ be telling jokes.
COULD / MAY / MIGHT
Perhaps Jane is in her office.
She could be in her office.
(may / might)
It's a small, light, box.
It's nicely wrapped with silver paper and a ribbon.
What's not in the box?
It can't be a live animal.
C
X2
DOUBLE POINTS
It must be her wedding.
It could be the bride and father first dance.
It can't be a funeral.
They're wearing scrubs and comfortable shoes.
They have disposable gloves in their pockets.
They may be vets or doctors.
(could / might)