第Ⅰ卷（选择题，共55分）
一、选择填空（共25小题；每小题1分，满分25分）
A)单项填空从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1. I know_______ John Smith, but not_______ one you know.
A．a；a B．the; the
C．the; a D．a；the
2. There are many ways for us to solve the problem. We can choose_______ to start with.
A. that B. it C. one D. each
3. ________ keep my flat as clean as new, I have my robot sweep the floor every day.
A. In order to B. So that C. As a result D. As usual
