问题：
_____the website of www．google．com, and you will learn a lot about Obama’s first visit to China．
[ ]
A．Searching
B．To search
C．Having searched
D．Search
_____the website of www．google．com, and you will learn a lot about Obama’s first visit to China．
B．To search
C．Having searched
D．Search
[ ]
A．Searching B．To search
C．Having searched
D．Search
参考答案：