Can you find out the differences ____ the first picture____ the second picture

They _____ have arrived at lunch time but the flight was delayed.

a sudden, the thief walking behind ayoung and pretty lady _______ her purse, ______into the crowd.

We recommend you ______ at least 15 minutes before the start of your tour.

On top of the mountain ______, which was built 2,000 years ago.