【题目】On their wedding, up________into the air. Then the relatives and friends cheered up.
A.go the balloons
B.did the balloons go
C.went the balloons
D.the balloons went

【答案】C
【解析】本题因方位副词up置于句首，其主语和谓语应用全部倒装结构，B项是部分倒装；A项的时态不对。句意：在他们的婚礼上，气球升入空中，然后亲朋好友们欢呼起来。故选C。