Taiyuan, a city in North China, was struck by a heavy snowfall last week, ______ serious traffic problems.

Mr Smith ______ a book about China last year but I don’t know whether he has finished it.

They required that the work              as soon as possible.

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

 The problem with people in Africa ____that the more is given and the more ______.