单项选择题
A. We have done the research in the north and the Midlands.
B. We haven’t done the research in the north and the Midlands yet.
C. We have decided not to do research in the north and the Midlands.
单项选择题 Pay-as-you-drive schemes will reduce the amount of traffic on motorways.（）
单项选择题 MEMOTo: PeterFrom: TomThe publicity leaflets for the new model will not be back from the printers until Friday 11 July.（）
填空题 Bicycle sales hardly changed throughout the period, except for a slight fall in 1998.（）