_____ the website of the Fire Department in your city, and you will learn a lot about firefighting.
A．Having searchedB．To searchC．SearchingD．Search
D
考查固定結(jié)構(gòu)。祈使句+連詞+陳述句=if條件句，主句；本句="If" you search the website of the Fire Department in your city, you will learn a lot about firefighting..
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