smok ed with satisfaction. My wife was deligh ted that thing s had returned to n ormal once more. An way , as Brian pointed ou t, it is the easiest th ing in the world to g ive up smo in g. He himself has done it lo ts of times! Lesso n79 By air 乘 飞机 I used to travel by air a great deal when I was a bo y. My parents, used to live in Sou th America and I used to fly there from Europe in the h