Can you imagine the great difficulty he had ________ his driving test last week

I admit that there are problems, I don’t agree that they can’t be solved[ ]

Recently I received a letter from him, and _____ was a big surprise for me.[ ]

13 ___ had they reached the 30th floor ____ they realized that they had forgotten to take the key

The film, Tales of Old Beijing, shows us ________Beijing looked like many years ago.