I'm sure he's at home --- HE .................... AT HOME
HE MUST BE AT HOME
It's impossible that he knew the problem ---- HE ............. THE PROBLEM
HE CAN'T HAVE KNOWN THE PROBLEM
We have bought more food than was necessary for the party ---- WE _______ FOR THE PARTY.
WE NEEDN'T HAVE BOUGHT MORE FOOD FOR THE PARTY.
I'm sure they didn't phone you --- THEY __________ YOU.
THEY CAN'T HAVE PHONED YOU.
It's just possible that he went to bed early. ---- HE ________EARLY.
HE MIGHT HAVE GONE TO BED EARLY
You mustn't speak Spanish in my class. (ALLOWED)
YOU ARE NOT ALLOWED TO SPEAK ENGLISH IN MY CLASS.
If I were you, I'd tell the truth. ---- YOU ______________ THE TRUTH.
You SHOULD tell the truth
It is obligatory for you to wear a uniform. --- YOU ________________A UNIFORM
You HAVE TO WEAR a uniform
It is not necessary for them to cook lunch. --- THEY __________ LUNCH
They DON'T HAVE TO COOK lunch
When she was ten years old, she had the ability to read people's minds. ----- SHE__________________ PEOPLE'S MINDS WHEN SHE WAS TEN YEARS OLD.
She COULD READ people's minds when she was ten years old.
It was careless of him to go without checking the time. --- HE ____________ THE TIME BEFORE GOING
He SHOULD HAVE CHECKED the time before going.
It's getting dark, so I ought to walk you home. (BETTER)
It's getting dark so I'D BETTER TAKE you home.
Maybe Paul is arranging the ceremony for Friday. (MIGHT) --- Paul .................................................................................... the ceremony for Friday.
PAUL MIGHT BE ARRANGING THE CEREMONY FOR FRIDAY.
Perhaps they came up with a better solution last night. (MAY) --- THEY _________ UP WITH A BETTER SOLUTION LAST NIGHT.
They MAY HAVE COME up with a better solution last night.
