问题
Before Chinese Chang’e-2, the US sent up a space probe (探测器) to hit the moon to see ______.
A:whether there was water on it
B:whether was there water on it
C:whether on it was there water
D:whether was water on it
B:whether was there water on it
C:whether on it was there water
D:whether was water on it
正确答案是：
