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标号涂黑。
1． The significance of 2010 Expo Shanghai lies in the opportunities it has provided for visitors to consider what would make for ______ better city and what should be ______ yardstick to improve city life．
A．a, the B．the, a C．a, / D．the, /
2． No matter how I tried to read it, I just couldn’t make_____ of this sentence．
A．meaning B．thought C．sense D．scene
3． ---Mary was asked to do something important．
---It doesn’t matter．Let’s______ the work where it is left off．
A．take up B．take down C．take in D．take off
