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1£®He suddenly appeared on ________ rainy night, which was ________ great surprise to us.
A£®a; / B£®a; a C£®the; a D£®/; the
2£®He made another wonderful discovery, ________ of great importance to science.
A£®which I think is B£®which I think it is
C£®which I think it D£®I think it is
3£®The song In Spring has brought national fame to Xuri­yanggang£¬________ won the second place in the 2010 Avenue of Stars Finals.
A£®when B£®what C£®where D£®who