(2013·长沙高考模拟)I ________ him in time, otherwise he would have fallen off the bike.

 —What’s the noise?   —Oh, I forget to tell you. The new machine     .

—You seem to be familiar with London.—I ______ there for three years. It’s great to be back.

—Do you know our town at all?—No, this is the first time I __________ here.

When and where to go for the on-salary holiday _____ yet.