Ответ:
Why didn't you call me when you arrived? I
would have given you a lift.
You
should have revised more for your exam. Now you have to retake it.
There's nobody at home. Everybody
must have gone out.
She
can't have failed the exam! She'd been revising all week!
You
shouldn't have been so rude to the teacher!
I'm not sure, but I
might have seen you before.
You
needn't have bought so much food. I bought everything this morning.
I
could have made one mistake in the test.
Объяснение: