---Mr.Black, I just can’t get my car started.I think there’s something wrong with the engine.---Oh, let me see.Ah, that is not _______ it is.Actually, your car has used up all the petrol.
—How many people are still leading ______ life under ________ poverty line in the world? —Perhaps one fourth.
It was only when I reread his poems recently ______ I began to appreciate their beauty.
—Why didn’t you buy the MP4 player? —I’d like to have, but I was £20 ______.
—I wonder if you could go with me to the shopping mall. —Don’t disturb me. I ______ my experiment report all the morning and haven’t finished yet.
—Would you mind if I open the door? —______