Frank, with his two sisters, _____London by train which _____at 8:30 next morning.

 I had wanted to visit the gallery before I            Florence, but it' s closed on Sundays.

With the development of science and technology, people’s life _______ in the past few years.

 --- Is it convenient to you if I call you up at 9 o’clock tomorrow morning? --- I’m afraid not. I _________ a speech then.

 Don’t call him at this time tomorrow, because he ________ a meeting with his teachers.