Whether we’ll hold the sports meet depends on the weather, _____?

I can well remember that there was a time _____ a deep blue sky,  the song of the birds,  moonlight and flowers could never have kept me spellbound. 

Modern science and technology has ___ communication between people far apart.

--- How was your trip to New York, Jennifer? --- Fantastic! That was the first time I _______ to such a big city. It’s so impressive.

—Why are you so late?—I was in half the way when it______to me that I had left my notebook home，so I had to fetch it.