1£®I saw her just now. She ____________ have gone to Beijing.

2£®You ____________ be Carol. You haven't changed a bit after all these years.

3£®I was really anxious about you, you ____________ have left home without a word.

4£®—Why are your eyes so red? You ____________ have slept well last night.

—Yeah, I stayed up late writing a report.

5£®He ____________ take a walk near the forest in the evening when he was a child.

6£®One of our rules is that every student ________ wear his school uniform while at school.

7£®You ____________ go home to see your parents as often as possible.

8£®—I left my handbag on the train, but luckily someone gave it to a railway official.

—How unbelievable to get it back! I mean, someone ____________ have stolen it.