It suddenly occurred to me        I hadn’t locked my door．

– Is there a cinema in Fubang Century Plaza(广场)? – Yes, there is _____ on Floor 4.

 The scientists have made _______ possible for us to communicate with each other more easily. 

Not having found __________，he had to go home with empty hands．

I agree with most of what you said, but I can’t agree with ______.