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deduction
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Rachel did the opposite of what I asked her to do. (she / understand / what I said)
can't have understood / couldn't have understood
Oops!
Okay!
Amy was in a very difficult situation when she lost her job. (it / easy for her)
can't (couldn't) have been
Oops!
Okay!
The jacket you bought is very good quality. It / very expensive
must have been
Oops!
Okay!
I'm looking for Sophie. Do you know where she is? a (she / watch / TV) b (she / go / out)
She might be watching TV or she might have gone out
Oops!
Okay!
There was a man standing outside the cafe. (he /wait / for somebody)
must have been waiting
Oops!
Okay!
I was woken up in the night by the noise next door. (my neighbours / have / a party)
must have been having
Oops!
Okay!
I can't find my umbrella. Have you seen it? a (it / be / in the car) b (you /leave / in the restaurant
It might be in the car or you might have left it in the restaurant
Oops!
Okay!
A:The man you spoke to - are you sure he was American? B: No, I'm not sure. He______
might not have been
Oops!
Okay!
The tight was red, but the car didn't stop. (the driver / see / the red tight)
can't have seen / couldn't have seen
Oops!
Okay!
A: I wonder how the fire started. Was it an accident? B: No, the police say it ____
couldn't have been
Oops!
Okay!
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