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C1_class 5 (grammar)
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I’m sure they lost their way, that’s why they are still not here. (MUST)
They must have lost their way
Oops!
Okay!
We had a chance to buy an apartment, but we decided to go travelling. (COULD)
We could have bought an apartment, but we decided to go travelling
Oops!
Okay!
It’s a pity that you didn’t listen to my advice. (TO)
You ought to have listened to my advice
Oops!
Okay!
I’m sure it was love. (MUST)
It must have been love
Oops!
Okay!
I’m sure you didn’t watch “The Big Bang Theory”, you hate sitcoms like that. (CAN)
You can’t have watched “The Big Bang Theory”
Oops!
Okay!
I regret dropping out of school so early. (SHOULD)
I shouldn’t have dropped out of school so early
Oops!
Okay!
I’m sure I didn’t tell you anything offensive. (COULD)
I couldn’t have told you anything offensive
Oops!
Okay!
It wasn’t necessary to lock the doors, even though you did. (NEED)
You needn’t have locked the door
Oops!
Okay!
Perhaps, they didn’t reach him via the phone. (MIGHT)
They might not have reached him via the phone.
Oops!
Okay!
There was no necessity to contact the police, so I didn’t call them. (NEED)
I didn’t need to contact the police
Oops!
Okay!
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