问题
选择题
The Hengxin Square is located in ____________ used to be our canteen.
A．what
B．where
C．which
D．the place
答案
：A
：考查宾语从句。What引导宾语从句what used to be our canteen并在句中做主语。Where是副词，不能在句中做主语。The place后面缺少关系词。句意：恒心广场位于过去是我们的餐厅的地方。故A正确。