小题1:Louisa didn’t have a pencil，so I let her borrow        (我的). 

小题2:If everyone        (遵守) the traffic rules, there will be fewer accidents. 

小题3:I don’t know what her interests are, because we talk     (主要地）about work when we meet.

小题4:If you want to improve your English, you should try to practise       (说) English as much as possible in and out of class. 

小题5:To our great      (惊讶), Tom failed to pass the graduation exam.

小题6:      (除了……之外) Su Dongpo, Huanggang was home to ancient doctor Li Shizhen and printing inventor Bi Sheng.

一般工业建筑的机械通风系统，其砖及混凝土风道内的风速，宜选用( )。

A．干管4～12m/s，支管2～6m/s

B．干管6～14m/s，支管2～6m/s

C．干管4～12m/s，支管4～8m/s

D．干管6～14m/s，支管4～8m/s